SlideShare a Scribd company logo
Myelodysplastic-Myeloproliferative
disorders
Chronic myelomonocytic leukemia
(CMML)
Atypical chronic myeloid leukemia,
BCR-ABL1-negative (aCML)
Myelodysplastic/myeloproliferative
neoplasm with ring sideroblasts and
thrombocytosis (MDS/MPN-RS-T)
Myelodysplastic/myeloproliferative
neoplasm, unclassifiable
(MDS/MPN-U)
Adult MD/MP disorders
Cell of origin:
Hematopoietic stem cell
Invariably involves
blood and bone marrow
Occurs in elderly age
group
Chronic myelomonocytic leukemia
• Introduction: It is a clonal hematopoietic malignancy with features of
both a myeloproliferative neoplasm and a myelodysplastic syndrome
• Incidence: 0.4 cases per 100,000 population
• Age: Elderly (median age 65-75years)
• Male predominance (M:F ~2.5:1)
• Etiology: Primarily de novo
• Exposure to occupational and environmental carcinogens or ionizing irradiation
• Sites for extramedullary leukemic infiltration: spleen, liver, skin and
lymph nodes
Chronic myelomonocytic leukemia
Proliferative
type
Weight
loss
Fever
Night
sweats
Increased
WBC count
Dysplastic
type
Fatigue
Infection
Bleeding
Decreased
WBC count
• Hepatosplenomegaly
• Lymphadenopathy: uncommon
Clinical features:
Chronic myelomonocytic leukemia
Peripheral blood:
• RBC:
• Mild anemia
• Normocytic but sometimes macrocytic
• nRBCs: may be present
• Platelet:
• Variable in number
• Moderate thrombocytopenia
• Atypical and large platelets may be seen
Chronic myelomonocytic leukemia
• WBC:
• Increased/normal/decreased in number
• Monocyte count: always >10%
• Monocytosis (always >1 x 109/L)
• Monocyte morphology: mature but can exhibit unusual nuclear lobulation or
chromatin patterns and abnormal granulation (abnormal monocytes)
• Neutrophil precursors: <10%
• Dysgranulopoiesis: may be seen
• Eosinophil and basophil count: usually normal
• Blasts & promonocytes: <20%
Chronic myelomonocytic leukemia
• Bone marrow aspirate:
• Usually hypercellular
• Increased M:E ratio
• Granulocytic and monocytic
proliferation
• Dysgranulopoiesis &
dysmegakaryopoiesis: ~80%
• Erythroid precursors: often
reduced in number
• Mild Dyserythropoiesis
• Blasts and promonocytes: <20%
• Bone marrow biopsy:
• Mild to moderate fibrosis
• Interstitial nodules composed of
mature plasmacytoid dendritic
cells (~20% cases)
Nodules of mature plasmacytoid dendritic cells
The cells have round nuclei, finely dispersed chromatin,
inconspicuous nucleoli, and a rim of eosinophilic cytoplasm.
The cytoplasmic membrane is usually distinct with well-
defined cytoplasmic borders, imparting a cohesive appearance
to the infiltrating cells.
Chronic myelomonocytic leukemia
• < 2% blasts in the blood and
• < 5% in the bone marrowCMML-0
• 2-4% blasts in the blood and/or
• 5-9% blasts in the bone marrowCMML-1
• 5-19% blasts in the blood and/or
• 10-19% in the bone marrow and/or
• Presence of Auer rods
CMML-2
Based on percentage of blasts and promonocytes in the peripheral blood and bone marrow:
• Cytochemistry:
• Strongly recommended
• Alpha-naphthyl butyrate esterase
(ANBE) staining alone or in
combination with chloroacetate
esterase (CAE) staining
• ANBE: brown reaction product in
monocytes and it’s precursors
• CAE: granular bright blue reaction
product in cells of neutrophil
lineage
• More sensitive than IHC
Chronic myelomonocytic leukemia
• Immunophenotype:
• Blood and marrow cells usually express typical myelomonocytic antigens
(CD33 and CD13) and variably express CD14, CD68 and CD64
• Blood and marrow monocytes: aberrant phenotypes (decreased CD14
expression; overexpression of CD56; aberrant expression of CD2)
• Increased proportion of CD14+/CD16- monocytes
• Mature plasmacytoid dendritic cells: positive for CD123, CD4, CD43, CD45RA,
CD68
Chronic myelomonocytic leukemia
• Genetic profile:
• 20-40% cases have clonal cytogenetic aberrations
• Most common: +8, -Y, del(7q), +21
Chronic myelomonocytic leukemia
• Genetic profile: molecular and epigenetic abnormalities
Patnaik MM, Tefferi A. Cytogenetic and molecular
abnormalities in chronic myelomonocytic leukemia.
Blood Cancer J. 2016 Feb 5;6:e393.
• Prognosis and predictive factors:
• Survival times range from 1 month to >100 months
• Median survival time: 20-40 months
• 15-30% cases progress to AML
• Prognostic factors: serum LDH level, splenomegaly, anaemia,
thrombocytopenia and lymphocytosis
• %age of blasts in blood and BM: most important factor determining survival
Chronic myelomonocytic leukemia
Differential diagnosis of CMML
CMML CML-CP Myeloid neoplasms with
PDGFRB rearrangement
WBC Variable; Monocytosis,
may have left shifted
neutrophilia
Increased; Left shifted
neutrophilia with peaks in
%age of myelocytes and
segmented
neutrophils
Increased; may have left
shifted neutrophilia,
monocytosis, eosinophilia
Blood immature
granulocytes
Usually <10% >10% <10%
Blood monocytes Always >1x103/μL Variable, <1x103/μL Often <1x103/μL
Blood eosinophils Not increased Increased Increased
Blood basophils Not increased Increased Increased
Blood blasts <20% Usually <2% <20%
Granulocytic dysplasia Present Absent Absent
Pseudo-gaucher cells Absent Present Usually absent
BCR-ABL1 fusion gene Absent Present (90-95%) Absent
Differential diagnosis of CMML
• Reactive monocytosis
• Infections: TB, SABE, HIV-1, Infectious mononucleosis, Malaria, Rocky
Mountain spotted fever, Trypanosomiasis, Brucellosis & Cat-scratch disease
• Autoimmune diseases: Vasculitis, SLE, Rheumatoid arthritis, IBD & Sarcoidosis
• Introduction: It is a leukemic disorder with myelodysplastic and
myeloproliferative features present at the time of initial diagnosis
• Incidence: unknown
• ~1-2 aCML cases per 100 cases of BCR-ABL1-positive CML
• Age: Elderly (median age 70-80years)
• Male predominance (M:F ~2.5:1)
• Sites for extramedullary leukemic infiltration: spleen and liver
• C/F: Fatigue, bleeding, hepatosplenomegaly
Atypical chronic myeloid leukemia, BCR-ABL 1-negative
Atypical chronic myeloid leukemia, BCR-ABL 1-negative
Peripheral blood:
• RBC:
• Moderate anemia
• Anisopoikilocytosis
• Dyserythropoiesis may be seen
• Platelets:
• Usually decreased in number
• WBC:
• Increased in number (always >13 x 109/L)
• Neutrophil precursors: >10%
• Monocyte count: may be increased
(<10%)
• Blasts: <5%
• Dysgranulopoiesis: prominent
• Hypersegmentation with abnormally
clumped nuclear chromatin or bizarrely
segmented nuclei, abnormal cytoplasmic
granularity (usually hypogranular) and
multiple nuclear projections
• Basophil count: usually normal
Atypical chronic myeloid leukemia, BCR-ABL 1-negative
• Bone marrow aspirate:
• Usually hypercellular
• Increased M:E ratio
• Granulocytic proliferation
• Dysgranulopoiesis: prominent
• Erythroid precursors: usually decreased in number
• Dyserythropoiesis: seen in 40% cases
• Megakaryocytes: Usually normal/increased in number
• Dysmegakaryopoiesis: often present
• Blasts: <20%
• Bone marrow biopsy:
• Mild fibrosis
• Cytochemistry and immunophenotype:
• No specific cytochemical abnormalities or immunophenotypic characteristics
• Genetic profile:
• ~80% show karyotypic abnormalities
• Most common abnormalities: +8 and del(20q)
• Abnormalities of chromosomes 13, 14, 17, 19 and 12 are also frequent
• SETBP1 and ETNK1 mutations: present in one-third cases
• CSF3R mutation: present in <10% cases
Atypical chronic myeloid leukemia, BCR-ABL 1-negative
• Prognosis and predictive factors:
• Poor prognosis
• Median survival time: 14-29 months
• Adverse prognostic factors: age >65 years, female gender, WBC count >50 x 109/L,
thrombocytopenia and haemoglobin level <10 g/dl
• ~30-40% cases evolves to AML
Atypical chronic myeloid leukemia, BCR-ABL 1-negative
aCML CML-CP CNL
Organomegaly Hepatosplenomegaly Splenomegaly Hepatosplenomegaly
Blood neutrophils &
bands
Not-defined Not-defined >80%
Blood immature
granulocytes
>10% >10% <10%
Blood basophils Minimal or <2% Increased Not increased
Blood myeloblasts <20% Usually <2% <1%
Granulocytic dysplasia Prominent Minimal/absent Minimal/absent
Megakaryocytic dysplasia Usually present Minimal/absent Minimal/absent
Marrow myeloblasts <20% Usually <5% <5%
BCR-ABL1 fusion gene Absent Present (90-95%) Absent
CSF3R mutation <10% Absent Present (>90%)
Differential diagnosis of aCML
• Introduction: It is a definitive entity in the 2016 WHO classification
• Age: Elderly (median age 72-75years)
• Slight female predominance
• Sites for extramedullary involvement: spleen and liver
• C/F: Fatigue, splenomegaly (~40%), hepatomegaly, thrombotic events
(2% to 20%)
Myelodysplastic/myeloproliferative neoplasm
with ring sideroblasts and thrombocytosis
Myelodysplastic/myeloproliferative neoplasm
with ring sideroblasts and thrombocytosis
Peripheral blood:
• RBC:
• Anemia
• Normochromic macrocytic or
normocytic
• Often dimorphic blood picture
• Anisocytosis
• WBC count and DLC:
• Usually normal
• Neutrophils may show mild
dysgranulopoiesis
• Blasts: absent/rare (<1%)
• Platelets:
• Persistant thrombocytosis (>450 x 109/L)
• Anisocytosis
• Tiny forms to atypical large or giant
platelets
• Bizarre shaped or agranular platelets
may also be seen
Myelodysplastic/myeloproliferative neoplasm
with ring sideroblasts and thrombocytosis
• Bone marrow aspirate:
• Usually hypercellular
• Reversal of M:E ratio
• Erythroid hyperplasia
• Dyserythropoiesis: marked
• >15% ring sideroblasts present on Prussian blue stain
• Megakaryocyte hyperplasia
• Megakaryocytes are predominantly large hypersegmented and show focal
clustering
• Multilineage dysplasia may also be seen
MDS/MPN-RS-T: Mutational pathogenesis
Mario Cazzola, Luca Malcovati, Rosangela Invernizzi,
Myelodysplastic/Myeloproliferative Neoplasms,
Hematology Am Soc Hematol Educ Program, 2011
• Genetic profile:
• Cytogenetic abnormalities: ~10% cases
• Somatic mutation involving RNA splicing gene (SF3B1): ~60-90%
• SF3B1 mutation commonly associated with JAK2 V617F mutation
• Rare association of CALR or MPL W515 mutation with SF3B1 has also been reported
• Detection of SF3B1, JAK2 V617F, CALR & MPL W515 mutations are not required for
the diagnosis
• Their presence supports the diagnosis and carry prognostic significance
Myelodysplastic/myeloproliferative neoplasm
with ring sideroblasts and thrombocytosis
Prognosis and predictive factors
• Median overall survival: 76- 128 months
• Prognostic factors: patient age, JAK2 V617F and SF3B1 mutation
• SF3B1 mutation: significantly longer median overall survival
• JAK2 V617F mutation: more favourable outcome
Myelodysplastic/myeloproliferative neoplasm
with ring sideroblasts and thrombocytosis
MDS/MPN-RS-T MDS-RS ET
Median age (in years) 72-75 60-73 ~60
Anemia Present Present Absent
Leukocytosis Not common Not common Not common
Thrombocytosis Present Absent Present
Ring sideroblasts >15% >15%/>5% Absent
Dysplasia Present Present Absent
JAK2 V617F mutation <10% Rare Common (50-60%)
SF3B1 mutation 60-90% 80-90% Absent
Median overall
survival
76-128 months Short (69-108 months) Long (120-180 months)
Myelodysplastic/myeloproliferative neoplasm
with ring sideroblasts and thrombocytosis
Montalban-Bravo G, Garcia-Manero G. MDS/MPN-RS-T justified inclusion as a unique
disease entity? Best Practice and Research: Clinical Haematology. 2020 Jan 1. 101147.
MDS-RS-T MDS-RS ET
• Introduction: It is characterized by dysplastic proliferation of one or more
myeloid lineages and simultaneously effective proliferation of another
myeloid lineages with no history of a preceding MPN
• Age: Elderly (median age ~70years)
• Male predominance
• Sites for extramedullary involvement: spleen and liver may be involved
• C/F: overlap with those of entities in the MDS and MPN
• Weight loss, fever and night sweats: Effective proliferation
• Fatigue, infection and bleeding: Dysplastic proliferation
Myelodysplastic/myeloproliferative neoplasm,
unclassifiable
Myelodysplastic/myeloproliferative neoplasm,
unclassifiable
Peripheral blood:
• RBC:
• Anemia
• Macrocytosis
• nRBCs may be seen
• WBC count:
• Increased in number (~70%)
• Neutrophilic precursors
• Neutrophils may show dysplasia
• Blasts: <20%
• Platelets:
• Increased/decreased in number
• Giant and hypogranular platelets
may be seen
• Bone marrow aspirate:
• Hypercellular
• M:E ratio: increased/decreased
• Proliferation of any or all myeloid lineages
• Significant (>10%) dysplastic features in at least one cell line
• Dysgranulopoiesis and dysmegakaryopoiesis: ~50% cases
• Blasts:<20%
• Bone marrow biopsy:
• Moderate to marked fibrosis (20-30%)
Myelodysplastic/myeloproliferative neoplasm,
unclassifiable
• Cytochemistry and immunophenotype:
• Cytochemical abnormalities or immunophenotypic characteristics are similar
to MDS or MPN
• Genetic profile
• No specific cytogenetic or molecular genetic findings
• High frequencies of TET2, NRAS, RUNX1, CBL, SETBP1 and ASXL 1 mutations
have been reported
Myelodysplastic/myeloproliferative neoplasm,
unclassifiable
• Prognosis and predictive factors
• Median overall survival: ~12-18 months
• AML transformation: ~20-30%
• Thrombocytopenia: negative impact on survival
• Thrombocytosis: favorable predictor for an improved survival
Myelodysplastic/myeloproliferative neoplasm,
unclassifiable
MDS/MPN-RS-T
Thank You!

More Related Content

What's hot

Myelodysplastic Syndrome
Myelodysplastic SyndromeMyelodysplastic Syndrome
Myelodysplastic SyndromeDr. Nurul Azam
 
Peripheral smear
Peripheral smearPeripheral smear
Peripheral smear
SUNIL KUMAR PEDDANA
 
Chronic myeloid Leukemia
Chronic myeloid LeukemiaChronic myeloid Leukemia
Chronic myeloid Leukemia
MLT LECTURES BY TANVEER TARA
 
RBC Indices and Their Role in Differential Diagnosis of different types of An...
RBC Indices and Their Role in Differential Diagnosis of different types of An...RBC Indices and Their Role in Differential Diagnosis of different types of An...
RBC Indices and Their Role in Differential Diagnosis of different types of An...meducationdotnet
 
Interpretation of cbc 3
Interpretation of cbc 3Interpretation of cbc 3
Interpretation of cbc 3
Rakesh Verma
 
Aml and all by asif.ppt.jjj
Aml and all by asif.ppt.jjjAml and all by asif.ppt.jjj
Aml and all by asif.ppt.jjj
Asif Zeb
 
Overview to Diagnosis of Acute leukemia
Overview to Diagnosis of Acute leukemiaOverview to Diagnosis of Acute leukemia
Overview to Diagnosis of Acute leukemia
Ahmed Makboul
 
PLASMA CELL DISORERS
PLASMA CELL DISORERSPLASMA CELL DISORERS
PLASMA CELL DISORERS
Kiran Ramakrishna
 
Internal quality control (IQC) in coagulation lab
Internal quality control (IQC) in coagulation labInternal quality control (IQC) in coagulation lab
Internal quality control (IQC) in coagulation lab
Ankit Raiyani
 
Monoclonal gammopathies of undetermined significance
Monoclonal gammopathies of undetermined significanceMonoclonal gammopathies of undetermined significance
Monoclonal gammopathies of undetermined significance
DrChirag Parmar
 
Benign White blood cell (WBC) Disorders
Benign White blood cell (WBC) DisordersBenign White blood cell (WBC) Disorders
Benign White blood cell (WBC) Disorders
Dr. Varughese George
 
Chronic myeloid leukemia
Chronic myeloid leukemiaChronic myeloid leukemia
Chronic myeloid leukemia
DrSuman Roy
 
Chronicmyeloproliferative neoplasm ,cll
Chronicmyeloproliferative neoplasm ,cllChronicmyeloproliferative neoplasm ,cll
Chronicmyeloproliferative neoplasm ,cll
pathologydept
 
Acute myeloid leukemia
Acute myeloid leukemiaAcute myeloid leukemia
Acute myeloid leukemia
DR RML DELHI
 
Chronic lymphoproliferative disorders
Chronic lymphoproliferative disordersChronic lymphoproliferative disorders
Chronic lymphoproliferative disordersVeena Raja
 
Mature T/NK cell Neoplasms
Mature T/NK cell NeoplasmsMature T/NK cell Neoplasms
Mature T/NK cell Neoplasms
Ahmed Makboul
 
Hematology Rivas2008 Lecture1
Hematology Rivas2008 Lecture1Hematology Rivas2008 Lecture1
Hematology Rivas2008 Lecture1Miami Dade
 
Multiple Myeloma
Multiple MyelomaMultiple Myeloma
Multiple Myeloma
Ipsita Panda
 
Osmotic fragility &amp; rbc membrane defects 050916
Osmotic fragility &amp; rbc membrane defects 050916Osmotic fragility &amp; rbc membrane defects 050916
Osmotic fragility &amp; rbc membrane defects 050916
Anwar Siddiqui
 
5-Plasma-Cell-Dyscrasias.ppt
5-Plasma-Cell-Dyscrasias.ppt5-Plasma-Cell-Dyscrasias.ppt
5-Plasma-Cell-Dyscrasias.ppt
T Gupta
 

What's hot (20)

Myelodysplastic Syndrome
Myelodysplastic SyndromeMyelodysplastic Syndrome
Myelodysplastic Syndrome
 
Peripheral smear
Peripheral smearPeripheral smear
Peripheral smear
 
Chronic myeloid Leukemia
Chronic myeloid LeukemiaChronic myeloid Leukemia
Chronic myeloid Leukemia
 
RBC Indices and Their Role in Differential Diagnosis of different types of An...
RBC Indices and Their Role in Differential Diagnosis of different types of An...RBC Indices and Their Role in Differential Diagnosis of different types of An...
RBC Indices and Their Role in Differential Diagnosis of different types of An...
 
Interpretation of cbc 3
Interpretation of cbc 3Interpretation of cbc 3
Interpretation of cbc 3
 
Aml and all by asif.ppt.jjj
Aml and all by asif.ppt.jjjAml and all by asif.ppt.jjj
Aml and all by asif.ppt.jjj
 
Overview to Diagnosis of Acute leukemia
Overview to Diagnosis of Acute leukemiaOverview to Diagnosis of Acute leukemia
Overview to Diagnosis of Acute leukemia
 
PLASMA CELL DISORERS
PLASMA CELL DISORERSPLASMA CELL DISORERS
PLASMA CELL DISORERS
 
Internal quality control (IQC) in coagulation lab
Internal quality control (IQC) in coagulation labInternal quality control (IQC) in coagulation lab
Internal quality control (IQC) in coagulation lab
 
Monoclonal gammopathies of undetermined significance
Monoclonal gammopathies of undetermined significanceMonoclonal gammopathies of undetermined significance
Monoclonal gammopathies of undetermined significance
 
Benign White blood cell (WBC) Disorders
Benign White blood cell (WBC) DisordersBenign White blood cell (WBC) Disorders
Benign White blood cell (WBC) Disorders
 
Chronic myeloid leukemia
Chronic myeloid leukemiaChronic myeloid leukemia
Chronic myeloid leukemia
 
Chronicmyeloproliferative neoplasm ,cll
Chronicmyeloproliferative neoplasm ,cllChronicmyeloproliferative neoplasm ,cll
Chronicmyeloproliferative neoplasm ,cll
 
Acute myeloid leukemia
Acute myeloid leukemiaAcute myeloid leukemia
Acute myeloid leukemia
 
Chronic lymphoproliferative disorders
Chronic lymphoproliferative disordersChronic lymphoproliferative disorders
Chronic lymphoproliferative disorders
 
Mature T/NK cell Neoplasms
Mature T/NK cell NeoplasmsMature T/NK cell Neoplasms
Mature T/NK cell Neoplasms
 
Hematology Rivas2008 Lecture1
Hematology Rivas2008 Lecture1Hematology Rivas2008 Lecture1
Hematology Rivas2008 Lecture1
 
Multiple Myeloma
Multiple MyelomaMultiple Myeloma
Multiple Myeloma
 
Osmotic fragility &amp; rbc membrane defects 050916
Osmotic fragility &amp; rbc membrane defects 050916Osmotic fragility &amp; rbc membrane defects 050916
Osmotic fragility &amp; rbc membrane defects 050916
 
5-Plasma-Cell-Dyscrasias.ppt
5-Plasma-Cell-Dyscrasias.ppt5-Plasma-Cell-Dyscrasias.ppt
5-Plasma-Cell-Dyscrasias.ppt
 

Similar to Adult Myelodysplastic/myeloproliferative neoplasms

Haematological malignancies
Haematological malignanciesHaematological malignancies
Haematological malignancies
DrAnindyo Mukhopadhyay
 
LEUKEMIC DISEASES AND THE EYE.pptx. This talks about the ocular manifestation...
LEUKEMIC DISEASES AND THE EYE.pptx. This talks about the ocular manifestation...LEUKEMIC DISEASES AND THE EYE.pptx. This talks about the ocular manifestation...
LEUKEMIC DISEASES AND THE EYE.pptx. This talks about the ocular manifestation...
BARNABASMUGABI
 
Chronic leukemias csbrp
Chronic leukemias csbrpChronic leukemias csbrp
Chronic leukemias csbrp
Prasad CSBR
 
Acute Myeloid Leukemia
Acute Myeloid LeukemiaAcute Myeloid Leukemia
acuteleukemiacomplt-161017163342 (1).pptx
acuteleukemiacomplt-161017163342 (1).pptxacuteleukemiacomplt-161017163342 (1).pptx
acuteleukemiacomplt-161017163342 (1).pptx
vandana thakur
 
Leukemia,mds,myeloproliferative
Leukemia,mds,myeloproliferativeLeukemia,mds,myeloproliferative
Leukemia,mds,myeloproliferative
HasiburRahman82
 
Acute leukemia lm754
Acute leukemia lm754Acute leukemia lm754
Acute leukemia lm754
Ahmad Qudah
 
B cell disorders other than CLL
B cell disorders other than CLLB cell disorders other than CLL
B cell disorders other than CLL
Habibah Chaudhary
 
acuteleukemiacomplt-161017163342.pdf
acuteleukemiacomplt-161017163342.pdfacuteleukemiacomplt-161017163342.pdf
acuteleukemiacomplt-161017163342.pdf
VandanaChandan1
 
Acute leukemia
Acute leukemia Acute leukemia
Acute leukemia
anil kumar g
 
Chronic leukemias basic overview .ppt
Chronic leukemias basic overview    .pptChronic leukemias basic overview    .ppt
Chronic leukemias basic overview .ppt
PayalDesai29
 
acute myeloid leukemia - neoplastic disease.pptx
acute myeloid leukemia - neoplastic disease.pptxacute myeloid leukemia - neoplastic disease.pptx
acute myeloid leukemia - neoplastic disease.pptx
MeethuRappai1
 
ACUTE MYELOID LEUKEMIA.pptx
ACUTE MYELOID LEUKEMIA.pptxACUTE MYELOID LEUKEMIA.pptx
ACUTE MYELOID LEUKEMIA.pptx
RoRy49
 
MDS/MPN (2021)
MDS/MPN (2021)MDS/MPN (2021)
MDS/MPN (2021)
Ahmed Makboul
 
Haematological malignancies CML.pptx
Haematological malignancies  CML.pptxHaematological malignancies  CML.pptx
Haematological malignancies CML.pptx
Hassan25409
 
Acute leukemia; imtiaz
Acute leukemia; imtiazAcute leukemia; imtiaz
Acute leukemia; imtiaz
MD Patholgoy, AFMC
 

Similar to Adult Myelodysplastic/myeloproliferative neoplasms (20)

Haematological malignancies
Haematological malignanciesHaematological malignancies
Haematological malignancies
 
LEUKEMIC DISEASES AND THE EYE.pptx. This talks about the ocular manifestation...
LEUKEMIC DISEASES AND THE EYE.pptx. This talks about the ocular manifestation...LEUKEMIC DISEASES AND THE EYE.pptx. This talks about the ocular manifestation...
LEUKEMIC DISEASES AND THE EYE.pptx. This talks about the ocular manifestation...
 
Chronic leukemias csbrp
Chronic leukemias csbrpChronic leukemias csbrp
Chronic leukemias csbrp
 
Acute Myeloid Leukemia
Acute Myeloid LeukemiaAcute Myeloid Leukemia
Acute Myeloid Leukemia
 
acuteleukemiacomplt-161017163342 (1).pptx
acuteleukemiacomplt-161017163342 (1).pptxacuteleukemiacomplt-161017163342 (1).pptx
acuteleukemiacomplt-161017163342 (1).pptx
 
Leukemia,mds,myeloproliferative
Leukemia,mds,myeloproliferativeLeukemia,mds,myeloproliferative
Leukemia,mds,myeloproliferative
 
No Title
No TitleNo Title
No Title
 
No Title
No TitleNo Title
No Title
 
No Title
No TitleNo Title
No Title
 
Acute leukemia lm754
Acute leukemia lm754Acute leukemia lm754
Acute leukemia lm754
 
B cell disorders other than CLL
B cell disorders other than CLLB cell disorders other than CLL
B cell disorders other than CLL
 
acuteleukemiacomplt-161017163342.pdf
acuteleukemiacomplt-161017163342.pdfacuteleukemiacomplt-161017163342.pdf
acuteleukemiacomplt-161017163342.pdf
 
Acute leukemia
Acute leukemia Acute leukemia
Acute leukemia
 
Chronic leukemias basic overview .ppt
Chronic leukemias basic overview    .pptChronic leukemias basic overview    .ppt
Chronic leukemias basic overview .ppt
 
acute myeloid leukemia - neoplastic disease.pptx
acute myeloid leukemia - neoplastic disease.pptxacute myeloid leukemia - neoplastic disease.pptx
acute myeloid leukemia - neoplastic disease.pptx
 
ACUTE MYELOID LEUKEMIA.pptx
ACUTE MYELOID LEUKEMIA.pptxACUTE MYELOID LEUKEMIA.pptx
ACUTE MYELOID LEUKEMIA.pptx
 
MDS/MPN (2021)
MDS/MPN (2021)MDS/MPN (2021)
MDS/MPN (2021)
 
Haematological malignancies CML.pptx
Haematological malignancies  CML.pptxHaematological malignancies  CML.pptx
Haematological malignancies CML.pptx
 
Acute Myelogenous Leukaemia
Acute Myelogenous Leukaemia Acute Myelogenous Leukaemia
Acute Myelogenous Leukaemia
 
Acute leukemia; imtiaz
Acute leukemia; imtiazAcute leukemia; imtiaz
Acute leukemia; imtiaz
 

Recently uploaded

Phone Us ❤85270-49040❤ #ℂall #gIRLS In Surat By Surat @ℂall @Girls Hotel With...
Phone Us ❤85270-49040❤ #ℂall #gIRLS In Surat By Surat @ℂall @Girls Hotel With...Phone Us ❤85270-49040❤ #ℂall #gIRLS In Surat By Surat @ℂall @Girls Hotel With...
Phone Us ❤85270-49040❤ #ℂall #gIRLS In Surat By Surat @ℂall @Girls Hotel With...
Savita Shen $i11
 
Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdfAlcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
Dr Jeenal Mistry
 
heat stroke and heat exhaustion in children
heat stroke and heat exhaustion in childrenheat stroke and heat exhaustion in children
heat stroke and heat exhaustion in children
SumeraAhmad5
 
Maxilla, Mandible & Hyoid Bone & Clinical Correlations by Dr. RIG.pptx
Maxilla, Mandible & Hyoid Bone & Clinical Correlations by Dr. RIG.pptxMaxilla, Mandible & Hyoid Bone & Clinical Correlations by Dr. RIG.pptx
Maxilla, Mandible & Hyoid Bone & Clinical Correlations by Dr. RIG.pptx
Dr. Rabia Inam Gandapore
 
Cervical & Brachial Plexus By Dr. RIG.pptx
Cervical & Brachial Plexus By Dr. RIG.pptxCervical & Brachial Plexus By Dr. RIG.pptx
Cervical & Brachial Plexus By Dr. RIG.pptx
Dr. Rabia Inam Gandapore
 
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
kevinkariuki227
 
basicmodesofventilation2022-220313203758.pdf
basicmodesofventilation2022-220313203758.pdfbasicmodesofventilation2022-220313203758.pdf
basicmodesofventilation2022-220313203758.pdf
aljamhori teaching hospital
 
The Normal Electrocardiogram - Part I of II
The Normal Electrocardiogram - Part I of IIThe Normal Electrocardiogram - Part I of II
The Normal Electrocardiogram - Part I of II
MedicoseAcademics
 
Charaka Samhita Sutra sthana Chapter 15 Upakalpaniyaadhyaya
Charaka Samhita Sutra sthana Chapter 15 UpakalpaniyaadhyayaCharaka Samhita Sutra sthana Chapter 15 Upakalpaniyaadhyaya
Charaka Samhita Sutra sthana Chapter 15 Upakalpaniyaadhyaya
Dr KHALID B.M
 
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...
i3 Health
 
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTSARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
Dr. Vinay Pareek
 
The POPPY STUDY (Preconception to post-partum cardiovascular function in prim...
The POPPY STUDY (Preconception to post-partum cardiovascular function in prim...The POPPY STUDY (Preconception to post-partum cardiovascular function in prim...
The POPPY STUDY (Preconception to post-partum cardiovascular function in prim...
Catherine Liao
 
micro teaching on communication m.sc nursing.pdf
micro teaching on communication m.sc nursing.pdfmicro teaching on communication m.sc nursing.pdf
micro teaching on communication m.sc nursing.pdf
Anurag Sharma
 
The hemodynamic and autonomic determinants of elevated blood pressure in obes...
The hemodynamic and autonomic determinants of elevated blood pressure in obes...The hemodynamic and autonomic determinants of elevated blood pressure in obes...
The hemodynamic and autonomic determinants of elevated blood pressure in obes...
Catherine Liao
 
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.GawadHemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
NephroTube - Dr.Gawad
 
Flu Vaccine Alert in Bangalore Karnataka
Flu Vaccine Alert in Bangalore KarnatakaFlu Vaccine Alert in Bangalore Karnataka
Flu Vaccine Alert in Bangalore Karnataka
addon Scans
 
Factory Supply Best Quality Pmk Oil CAS 28578–16–7 PMK Powder in Stock
Factory Supply Best Quality Pmk Oil CAS 28578–16–7 PMK Powder in StockFactory Supply Best Quality Pmk Oil CAS 28578–16–7 PMK Powder in Stock
Factory Supply Best Quality Pmk Oil CAS 28578–16–7 PMK Powder in Stock
rebeccabio
 
24 Upakrama.pptx class ppt useful in all
24 Upakrama.pptx class ppt useful in all24 Upakrama.pptx class ppt useful in all
24 Upakrama.pptx class ppt useful in all
DrSathishMS1
 
BRACHYTHERAPY OVERVIEW AND APPLICATORS
BRACHYTHERAPY OVERVIEW  AND  APPLICATORSBRACHYTHERAPY OVERVIEW  AND  APPLICATORS
BRACHYTHERAPY OVERVIEW AND APPLICATORS
Krishan Murari
 
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
VarunMahajani
 

Recently uploaded (20)

Phone Us ❤85270-49040❤ #ℂall #gIRLS In Surat By Surat @ℂall @Girls Hotel With...
Phone Us ❤85270-49040❤ #ℂall #gIRLS In Surat By Surat @ℂall @Girls Hotel With...Phone Us ❤85270-49040❤ #ℂall #gIRLS In Surat By Surat @ℂall @Girls Hotel With...
Phone Us ❤85270-49040❤ #ℂall #gIRLS In Surat By Surat @ℂall @Girls Hotel With...
 
Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdfAlcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
Alcohol_Dr. Jeenal Mistry MD Pharmacology.pdf
 
heat stroke and heat exhaustion in children
heat stroke and heat exhaustion in childrenheat stroke and heat exhaustion in children
heat stroke and heat exhaustion in children
 
Maxilla, Mandible & Hyoid Bone & Clinical Correlations by Dr. RIG.pptx
Maxilla, Mandible & Hyoid Bone & Clinical Correlations by Dr. RIG.pptxMaxilla, Mandible & Hyoid Bone & Clinical Correlations by Dr. RIG.pptx
Maxilla, Mandible & Hyoid Bone & Clinical Correlations by Dr. RIG.pptx
 
Cervical & Brachial Plexus By Dr. RIG.pptx
Cervical & Brachial Plexus By Dr. RIG.pptxCervical & Brachial Plexus By Dr. RIG.pptx
Cervical & Brachial Plexus By Dr. RIG.pptx
 
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...
 
basicmodesofventilation2022-220313203758.pdf
basicmodesofventilation2022-220313203758.pdfbasicmodesofventilation2022-220313203758.pdf
basicmodesofventilation2022-220313203758.pdf
 
The Normal Electrocardiogram - Part I of II
The Normal Electrocardiogram - Part I of IIThe Normal Electrocardiogram - Part I of II
The Normal Electrocardiogram - Part I of II
 
Charaka Samhita Sutra sthana Chapter 15 Upakalpaniyaadhyaya
Charaka Samhita Sutra sthana Chapter 15 UpakalpaniyaadhyayaCharaka Samhita Sutra sthana Chapter 15 Upakalpaniyaadhyaya
Charaka Samhita Sutra sthana Chapter 15 Upakalpaniyaadhyaya
 
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...
 
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTSARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
ARTHROLOGY PPT NCISM SYLLABUS AYURVEDA STUDENTS
 
The POPPY STUDY (Preconception to post-partum cardiovascular function in prim...
The POPPY STUDY (Preconception to post-partum cardiovascular function in prim...The POPPY STUDY (Preconception to post-partum cardiovascular function in prim...
The POPPY STUDY (Preconception to post-partum cardiovascular function in prim...
 
micro teaching on communication m.sc nursing.pdf
micro teaching on communication m.sc nursing.pdfmicro teaching on communication m.sc nursing.pdf
micro teaching on communication m.sc nursing.pdf
 
The hemodynamic and autonomic determinants of elevated blood pressure in obes...
The hemodynamic and autonomic determinants of elevated blood pressure in obes...The hemodynamic and autonomic determinants of elevated blood pressure in obes...
The hemodynamic and autonomic determinants of elevated blood pressure in obes...
 
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.GawadHemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
Hemodialysis: Chapter 3, Dialysis Water Unit - Dr.Gawad
 
Flu Vaccine Alert in Bangalore Karnataka
Flu Vaccine Alert in Bangalore KarnatakaFlu Vaccine Alert in Bangalore Karnataka
Flu Vaccine Alert in Bangalore Karnataka
 
Factory Supply Best Quality Pmk Oil CAS 28578–16–7 PMK Powder in Stock
Factory Supply Best Quality Pmk Oil CAS 28578–16–7 PMK Powder in StockFactory Supply Best Quality Pmk Oil CAS 28578–16–7 PMK Powder in Stock
Factory Supply Best Quality Pmk Oil CAS 28578–16–7 PMK Powder in Stock
 
24 Upakrama.pptx class ppt useful in all
24 Upakrama.pptx class ppt useful in all24 Upakrama.pptx class ppt useful in all
24 Upakrama.pptx class ppt useful in all
 
BRACHYTHERAPY OVERVIEW AND APPLICATORS
BRACHYTHERAPY OVERVIEW  AND  APPLICATORSBRACHYTHERAPY OVERVIEW  AND  APPLICATORS
BRACHYTHERAPY OVERVIEW AND APPLICATORS
 
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...
 

Adult Myelodysplastic/myeloproliferative neoplasms

  • 2. Chronic myelomonocytic leukemia (CMML) Atypical chronic myeloid leukemia, BCR-ABL1-negative (aCML) Myelodysplastic/myeloproliferative neoplasm with ring sideroblasts and thrombocytosis (MDS/MPN-RS-T) Myelodysplastic/myeloproliferative neoplasm, unclassifiable (MDS/MPN-U) Adult MD/MP disorders Cell of origin: Hematopoietic stem cell Invariably involves blood and bone marrow Occurs in elderly age group
  • 3. Chronic myelomonocytic leukemia • Introduction: It is a clonal hematopoietic malignancy with features of both a myeloproliferative neoplasm and a myelodysplastic syndrome • Incidence: 0.4 cases per 100,000 population • Age: Elderly (median age 65-75years) • Male predominance (M:F ~2.5:1) • Etiology: Primarily de novo • Exposure to occupational and environmental carcinogens or ionizing irradiation • Sites for extramedullary leukemic infiltration: spleen, liver, skin and lymph nodes
  • 4. Chronic myelomonocytic leukemia Proliferative type Weight loss Fever Night sweats Increased WBC count Dysplastic type Fatigue Infection Bleeding Decreased WBC count • Hepatosplenomegaly • Lymphadenopathy: uncommon Clinical features:
  • 5.
  • 6. Chronic myelomonocytic leukemia Peripheral blood: • RBC: • Mild anemia • Normocytic but sometimes macrocytic • nRBCs: may be present • Platelet: • Variable in number • Moderate thrombocytopenia • Atypical and large platelets may be seen
  • 7. Chronic myelomonocytic leukemia • WBC: • Increased/normal/decreased in number • Monocyte count: always >10% • Monocytosis (always >1 x 109/L) • Monocyte morphology: mature but can exhibit unusual nuclear lobulation or chromatin patterns and abnormal granulation (abnormal monocytes) • Neutrophil precursors: <10% • Dysgranulopoiesis: may be seen • Eosinophil and basophil count: usually normal • Blasts & promonocytes: <20%
  • 8.
  • 9. Chronic myelomonocytic leukemia • Bone marrow aspirate: • Usually hypercellular • Increased M:E ratio • Granulocytic and monocytic proliferation • Dysgranulopoiesis & dysmegakaryopoiesis: ~80% • Erythroid precursors: often reduced in number • Mild Dyserythropoiesis • Blasts and promonocytes: <20% • Bone marrow biopsy: • Mild to moderate fibrosis • Interstitial nodules composed of mature plasmacytoid dendritic cells (~20% cases)
  • 10.
  • 11.
  • 12.
  • 13. Nodules of mature plasmacytoid dendritic cells The cells have round nuclei, finely dispersed chromatin, inconspicuous nucleoli, and a rim of eosinophilic cytoplasm. The cytoplasmic membrane is usually distinct with well- defined cytoplasmic borders, imparting a cohesive appearance to the infiltrating cells.
  • 14. Chronic myelomonocytic leukemia • < 2% blasts in the blood and • < 5% in the bone marrowCMML-0 • 2-4% blasts in the blood and/or • 5-9% blasts in the bone marrowCMML-1 • 5-19% blasts in the blood and/or • 10-19% in the bone marrow and/or • Presence of Auer rods CMML-2 Based on percentage of blasts and promonocytes in the peripheral blood and bone marrow:
  • 15. • Cytochemistry: • Strongly recommended • Alpha-naphthyl butyrate esterase (ANBE) staining alone or in combination with chloroacetate esterase (CAE) staining • ANBE: brown reaction product in monocytes and it’s precursors • CAE: granular bright blue reaction product in cells of neutrophil lineage • More sensitive than IHC Chronic myelomonocytic leukemia
  • 16. • Immunophenotype: • Blood and marrow cells usually express typical myelomonocytic antigens (CD33 and CD13) and variably express CD14, CD68 and CD64 • Blood and marrow monocytes: aberrant phenotypes (decreased CD14 expression; overexpression of CD56; aberrant expression of CD2) • Increased proportion of CD14+/CD16- monocytes • Mature plasmacytoid dendritic cells: positive for CD123, CD4, CD43, CD45RA, CD68 Chronic myelomonocytic leukemia
  • 17. • Genetic profile: • 20-40% cases have clonal cytogenetic aberrations • Most common: +8, -Y, del(7q), +21 Chronic myelomonocytic leukemia
  • 18. • Genetic profile: molecular and epigenetic abnormalities Patnaik MM, Tefferi A. Cytogenetic and molecular abnormalities in chronic myelomonocytic leukemia. Blood Cancer J. 2016 Feb 5;6:e393.
  • 19. • Prognosis and predictive factors: • Survival times range from 1 month to >100 months • Median survival time: 20-40 months • 15-30% cases progress to AML • Prognostic factors: serum LDH level, splenomegaly, anaemia, thrombocytopenia and lymphocytosis • %age of blasts in blood and BM: most important factor determining survival Chronic myelomonocytic leukemia
  • 20. Differential diagnosis of CMML CMML CML-CP Myeloid neoplasms with PDGFRB rearrangement WBC Variable; Monocytosis, may have left shifted neutrophilia Increased; Left shifted neutrophilia with peaks in %age of myelocytes and segmented neutrophils Increased; may have left shifted neutrophilia, monocytosis, eosinophilia Blood immature granulocytes Usually <10% >10% <10% Blood monocytes Always >1x103/μL Variable, <1x103/μL Often <1x103/μL Blood eosinophils Not increased Increased Increased Blood basophils Not increased Increased Increased Blood blasts <20% Usually <2% <20% Granulocytic dysplasia Present Absent Absent Pseudo-gaucher cells Absent Present Usually absent BCR-ABL1 fusion gene Absent Present (90-95%) Absent
  • 21. Differential diagnosis of CMML • Reactive monocytosis • Infections: TB, SABE, HIV-1, Infectious mononucleosis, Malaria, Rocky Mountain spotted fever, Trypanosomiasis, Brucellosis & Cat-scratch disease • Autoimmune diseases: Vasculitis, SLE, Rheumatoid arthritis, IBD & Sarcoidosis
  • 22. • Introduction: It is a leukemic disorder with myelodysplastic and myeloproliferative features present at the time of initial diagnosis • Incidence: unknown • ~1-2 aCML cases per 100 cases of BCR-ABL1-positive CML • Age: Elderly (median age 70-80years) • Male predominance (M:F ~2.5:1) • Sites for extramedullary leukemic infiltration: spleen and liver • C/F: Fatigue, bleeding, hepatosplenomegaly Atypical chronic myeloid leukemia, BCR-ABL 1-negative
  • 23.
  • 24. Atypical chronic myeloid leukemia, BCR-ABL 1-negative Peripheral blood: • RBC: • Moderate anemia • Anisopoikilocytosis • Dyserythropoiesis may be seen • Platelets: • Usually decreased in number • WBC: • Increased in number (always >13 x 109/L) • Neutrophil precursors: >10% • Monocyte count: may be increased (<10%) • Blasts: <5% • Dysgranulopoiesis: prominent • Hypersegmentation with abnormally clumped nuclear chromatin or bizarrely segmented nuclei, abnormal cytoplasmic granularity (usually hypogranular) and multiple nuclear projections • Basophil count: usually normal
  • 25.
  • 26. Atypical chronic myeloid leukemia, BCR-ABL 1-negative • Bone marrow aspirate: • Usually hypercellular • Increased M:E ratio • Granulocytic proliferation • Dysgranulopoiesis: prominent • Erythroid precursors: usually decreased in number • Dyserythropoiesis: seen in 40% cases • Megakaryocytes: Usually normal/increased in number • Dysmegakaryopoiesis: often present • Blasts: <20% • Bone marrow biopsy: • Mild fibrosis
  • 27.
  • 28. • Cytochemistry and immunophenotype: • No specific cytochemical abnormalities or immunophenotypic characteristics • Genetic profile: • ~80% show karyotypic abnormalities • Most common abnormalities: +8 and del(20q) • Abnormalities of chromosomes 13, 14, 17, 19 and 12 are also frequent • SETBP1 and ETNK1 mutations: present in one-third cases • CSF3R mutation: present in <10% cases Atypical chronic myeloid leukemia, BCR-ABL 1-negative
  • 29. • Prognosis and predictive factors: • Poor prognosis • Median survival time: 14-29 months • Adverse prognostic factors: age >65 years, female gender, WBC count >50 x 109/L, thrombocytopenia and haemoglobin level <10 g/dl • ~30-40% cases evolves to AML Atypical chronic myeloid leukemia, BCR-ABL 1-negative
  • 30. aCML CML-CP CNL Organomegaly Hepatosplenomegaly Splenomegaly Hepatosplenomegaly Blood neutrophils & bands Not-defined Not-defined >80% Blood immature granulocytes >10% >10% <10% Blood basophils Minimal or <2% Increased Not increased Blood myeloblasts <20% Usually <2% <1% Granulocytic dysplasia Prominent Minimal/absent Minimal/absent Megakaryocytic dysplasia Usually present Minimal/absent Minimal/absent Marrow myeloblasts <20% Usually <5% <5% BCR-ABL1 fusion gene Absent Present (90-95%) Absent CSF3R mutation <10% Absent Present (>90%) Differential diagnosis of aCML
  • 31.
  • 32. • Introduction: It is a definitive entity in the 2016 WHO classification • Age: Elderly (median age 72-75years) • Slight female predominance • Sites for extramedullary involvement: spleen and liver • C/F: Fatigue, splenomegaly (~40%), hepatomegaly, thrombotic events (2% to 20%) Myelodysplastic/myeloproliferative neoplasm with ring sideroblasts and thrombocytosis
  • 33.
  • 34. Myelodysplastic/myeloproliferative neoplasm with ring sideroblasts and thrombocytosis Peripheral blood: • RBC: • Anemia • Normochromic macrocytic or normocytic • Often dimorphic blood picture • Anisocytosis • WBC count and DLC: • Usually normal • Neutrophils may show mild dysgranulopoiesis • Blasts: absent/rare (<1%) • Platelets: • Persistant thrombocytosis (>450 x 109/L) • Anisocytosis • Tiny forms to atypical large or giant platelets • Bizarre shaped or agranular platelets may also be seen
  • 35.
  • 36. Myelodysplastic/myeloproliferative neoplasm with ring sideroblasts and thrombocytosis • Bone marrow aspirate: • Usually hypercellular • Reversal of M:E ratio • Erythroid hyperplasia • Dyserythropoiesis: marked • >15% ring sideroblasts present on Prussian blue stain • Megakaryocyte hyperplasia • Megakaryocytes are predominantly large hypersegmented and show focal clustering • Multilineage dysplasia may also be seen
  • 37.
  • 38.
  • 39. MDS/MPN-RS-T: Mutational pathogenesis Mario Cazzola, Luca Malcovati, Rosangela Invernizzi, Myelodysplastic/Myeloproliferative Neoplasms, Hematology Am Soc Hematol Educ Program, 2011
  • 40. • Genetic profile: • Cytogenetic abnormalities: ~10% cases • Somatic mutation involving RNA splicing gene (SF3B1): ~60-90% • SF3B1 mutation commonly associated with JAK2 V617F mutation • Rare association of CALR or MPL W515 mutation with SF3B1 has also been reported • Detection of SF3B1, JAK2 V617F, CALR & MPL W515 mutations are not required for the diagnosis • Their presence supports the diagnosis and carry prognostic significance Myelodysplastic/myeloproliferative neoplasm with ring sideroblasts and thrombocytosis
  • 41. Prognosis and predictive factors • Median overall survival: 76- 128 months • Prognostic factors: patient age, JAK2 V617F and SF3B1 mutation • SF3B1 mutation: significantly longer median overall survival • JAK2 V617F mutation: more favourable outcome Myelodysplastic/myeloproliferative neoplasm with ring sideroblasts and thrombocytosis
  • 42. MDS/MPN-RS-T MDS-RS ET Median age (in years) 72-75 60-73 ~60 Anemia Present Present Absent Leukocytosis Not common Not common Not common Thrombocytosis Present Absent Present Ring sideroblasts >15% >15%/>5% Absent Dysplasia Present Present Absent JAK2 V617F mutation <10% Rare Common (50-60%) SF3B1 mutation 60-90% 80-90% Absent Median overall survival 76-128 months Short (69-108 months) Long (120-180 months) Myelodysplastic/myeloproliferative neoplasm with ring sideroblasts and thrombocytosis
  • 43. Montalban-Bravo G, Garcia-Manero G. MDS/MPN-RS-T justified inclusion as a unique disease entity? Best Practice and Research: Clinical Haematology. 2020 Jan 1. 101147.
  • 45. • Introduction: It is characterized by dysplastic proliferation of one or more myeloid lineages and simultaneously effective proliferation of another myeloid lineages with no history of a preceding MPN • Age: Elderly (median age ~70years) • Male predominance • Sites for extramedullary involvement: spleen and liver may be involved • C/F: overlap with those of entities in the MDS and MPN • Weight loss, fever and night sweats: Effective proliferation • Fatigue, infection and bleeding: Dysplastic proliferation Myelodysplastic/myeloproliferative neoplasm, unclassifiable
  • 46.
  • 47. Myelodysplastic/myeloproliferative neoplasm, unclassifiable Peripheral blood: • RBC: • Anemia • Macrocytosis • nRBCs may be seen • WBC count: • Increased in number (~70%) • Neutrophilic precursors • Neutrophils may show dysplasia • Blasts: <20% • Platelets: • Increased/decreased in number • Giant and hypogranular platelets may be seen
  • 48. • Bone marrow aspirate: • Hypercellular • M:E ratio: increased/decreased • Proliferation of any or all myeloid lineages • Significant (>10%) dysplastic features in at least one cell line • Dysgranulopoiesis and dysmegakaryopoiesis: ~50% cases • Blasts:<20% • Bone marrow biopsy: • Moderate to marked fibrosis (20-30%) Myelodysplastic/myeloproliferative neoplasm, unclassifiable
  • 49. • Cytochemistry and immunophenotype: • Cytochemical abnormalities or immunophenotypic characteristics are similar to MDS or MPN • Genetic profile • No specific cytogenetic or molecular genetic findings • High frequencies of TET2, NRAS, RUNX1, CBL, SETBP1 and ASXL 1 mutations have been reported Myelodysplastic/myeloproliferative neoplasm, unclassifiable
  • 50. • Prognosis and predictive factors • Median overall survival: ~12-18 months • AML transformation: ~20-30% • Thrombocytopenia: negative impact on survival • Thrombocytosis: favorable predictor for an improved survival Myelodysplastic/myeloproliferative neoplasm, unclassifiable

Editor's Notes

  1. Primarily occurs de novo. However…implicated in some cases
  2. The aspirate smears show a myeloid predominance with increased monocytes (16%) and 2% blasts. There are subtle dysplastic features in the neutrophils. The aspirate smears show a myeloid predominance with increased monocytes (16%) and 2% blasts. There are subtle dysplastic features in the neutrophils.
  3. The trephine core is hypercellular for age with increased numbers of monocytes. Bone marrow biopsy in chronic myelomonocytic leukemia showing a proliferation of granulocytes and monocytic elements. The monocytes are prominent in this case and show clustering (right), but in some cases they are only slightly increased in the marrow.
  4. Chronic myelomonocytic leukaemia. A Some degree of fibrosis may be seen in as many as 30% of cases; this bone marrow biopsy specimen shows streaming of cells suggestive of underlying reticulin fibrosis, the presence of which was confirmed by reticu lin silver staining
  5. Ihc: strong mem positivity for cd123
  6. strongly recommended whenever the diagnosis of CMML is considered {2985). Alpha-naphthyl butyrate esterase or alpha-naphthyl acetate esterase (with fluoride inhibition) staining of blood and bone marrow aspirate smears, alone or in combination with naphthol AS-D chloroacetate esterase (CAE) staining, is extremely useful for assessing the monocytic component,
  7. A higher proportion OF BLASTS may indicate poor prognosis or higher risk of rapid transformation to acute leukaemia
  8. 190 isoform: monocytosis 230 isoform: neutrophilia
  9. Therefore, it is critical to prove a clonal neoplastic process in CMML. In addition to these neoplastic causes, reactive mono should be ruled out before diagnosing cmml
  10. it is estimated that there are only 1-2 aCML cases for every 100 cases of BCR-ABL1-positive chronic myeloid leukaemia
  11. Most of the leukocytes in the blood are granulocytes with 10% or more immature forms (promyelocytes, myelocytes, and metamyelocytes). Granulocytes are dysplastic with hypogranular cytoplasm, nuclear atypia, and hypolobation (Fig. 17.37). It is also observed in some cases that neutrophils may show abnormal chromatin clumping with multiple nuclear lobes HYPO GRANULAY CYTO, HYPOLOBATED NUCLEUS, HY
  12. Wbc count can reach upto 3l/ Absolute mono count >1000 Platelets are decreased in approximately one third to one half of the patients.
  13. M:E ratio is increased with a left shift and pseudo Pelger Huet forms. Abnormal nuclear lobulation is noted in the neutrophils. There is also maturational arrest in the myeloid series. BM smear showing granulocytic hyperplasia and erythroid hypoplasia. Mature neutrophils are agranular and show abnormal nuclear segmentation.
  14. most of the remaining patients die of marrow failure
  15. HEPATOMEGALY INFREQUENT
  16. PB film from a patient with MDS/MPN‐RS‐T/refractory anaemia with ring sideroblasts and thrombocytosis showing mild anisopoikilocytosis, dysplastic neutrophils, thrombocytosis and giant platelets; there is one hypochromic erythrocyte.
  17. Bone marrow biopsy: Mild fibrosis
  18. SF3B1 Codon 700 ON THE OTHER HAND SOMATIC MUTATION
  19. Mds-rs ring sideroblasts %15/5
  20. Morphological and mutational features of MDS/MPN-RS-T, MDS-RS and ET
  21. CANNOT BE CLASSIFIED INTO ANY OF THE KNOWN DISEASE SUBTYPES