The document describes several different bone lesions and tumors that can occur in the jaw. It provides radiographs and microscopic images of osteoma, Gardner syndrome, osteoblastoma, cementoblastoma, desmoplastic fibroma, hemangioma, osteosarcoma, chondroblastic osteosarcoma, fibroblastic osteosarcoma, pigmented neuroectodermal tumor, Burkitt's lymphoma, angiocentric T-cell lymphoma, multiple myeloma, and Langerhans cell histiocytosis. For each condition, it shows the characteristic radiographic or microscopic appearance.
Description :
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.
Description :
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.for more details please visit
www.indiandentalacademy.com
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.
Vladimir Bobić - Subchondroplasty - ICRS Focus Meeting Rome 7th June 2019Vladimir Bobic
We may have embraced the entirely new treatment concept which is possibly based on some assumptions. Subchondroplasty is probably indicated mainly for the treatment of subchondral cysts and cavities, rather than various bone marrow oedema conditions, most of which do not seem to need surgical treatment, as they get better given time.
The aetiology of various conditions, known generically as “bone marrow oedema” (or perhaps more correctly “bone marrow lesions”), is very different and it is still poorly understood and therefore it is difficult to decide when the surgical treatment is necessary and what is the most appropriate treatment.
Bone marrow oedema, as a metabolic (possibly vascular remodelling rather than degenerative) process does not seem to lack bone, and therefore injecting bone substitute is probably not the best ingredient. To the contrary, injecting bone paste may clog subchondral microtrabecular bone spaces and may slow down or prevent subchondral repair and remodelling by blocking neurovascular pathways. It is difficult to accept that patients "should expect 3 days of severe pain" postoperatively, but even if we do this is probably not acceptable, because injected and cured bone substitute may increase intra-osseous pressure (which is already higher than normal, especially in SONK-like conditions, which are very painful to start with) and block metabolic (vascular) pathways. Unsurprisingly, in some cases, biopsy of the subchondroplasty area treated with on calcium phosphate paste has shown necrotic or nonviable bone a few years postoperatively.
However, long-lasting symptomatic bone marrow oedema and SONK-like lesions, may benefit biologically and structurally from the surgical treatment with more biologically desirable ingredient, such as autologous bone marrow aspirate, delivered directly to the intra-osseous area affected with bone marrow oedema. This is where subchondroplasty, using autologous bone marrow aspirate, autologous stem cells or even autologous PRP gets entirely new biological meaning and possibly becomes more useful therapeutically.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.
Vladimir Bobić - Subchondroplasty - ICRS Focus Meeting Rome 7th June 2019Vladimir Bobic
We may have embraced the entirely new treatment concept which is possibly based on some assumptions. Subchondroplasty is probably indicated mainly for the treatment of subchondral cysts and cavities, rather than various bone marrow oedema conditions, most of which do not seem to need surgical treatment, as they get better given time.
The aetiology of various conditions, known generically as “bone marrow oedema” (or perhaps more correctly “bone marrow lesions”), is very different and it is still poorly understood and therefore it is difficult to decide when the surgical treatment is necessary and what is the most appropriate treatment.
Bone marrow oedema, as a metabolic (possibly vascular remodelling rather than degenerative) process does not seem to lack bone, and therefore injecting bone substitute is probably not the best ingredient. To the contrary, injecting bone paste may clog subchondral microtrabecular bone spaces and may slow down or prevent subchondral repair and remodelling by blocking neurovascular pathways. It is difficult to accept that patients "should expect 3 days of severe pain" postoperatively, but even if we do this is probably not acceptable, because injected and cured bone substitute may increase intra-osseous pressure (which is already higher than normal, especially in SONK-like conditions, which are very painful to start with) and block metabolic (vascular) pathways. Unsurprisingly, in some cases, biopsy of the subchondroplasty area treated with on calcium phosphate paste has shown necrotic or nonviable bone a few years postoperatively.
However, long-lasting symptomatic bone marrow oedema and SONK-like lesions, may benefit biologically and structurally from the surgical treatment with more biologically desirable ingredient, such as autologous bone marrow aspirate, delivered directly to the intra-osseous area affected with bone marrow oedema. This is where subchondroplasty, using autologous bone marrow aspirate, autologous stem cells or even autologous PRP gets entirely new biological meaning and possibly becomes more useful therapeutically.
This publication has been prepared in order to provide general information regarding two primary types of legal entities that may be incorporated in Turkey.
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Indian Dental Academy: will be one of the most relevant and exciting training center with best faculty and flexible training programs for dental professionals who wish to advance in their dental practice,Offers certified courses in Dental implants,Orthodontics,Endodontics,Cosmetic Dentistry, Prosthetic Dentistry, Periodontics and General Dentistry.
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.
Dr. Ahmed M. Adawy, Professor Emeritus, Dep. Oral & Maxillofacial Surgery. Former Dean, Faculty of Dental Medicine, Al-Azhar University. Ameloblastoma is benign slow-growing but locally invasive neoplasm of odontogenic origin. In 2005, the WHO has classified ameloblastomas into multi cystic, unicystic and peripheral subtypes. The clinical picture, radiographic findings and differential diagnosis are presented. Treatment of ameloblastomas is primarily surgical. There has been some debate regarding the most appropriate method for removing. These range from conservative to radical modes. Some authors advocate conservative approach and thought that ameloblastoma are essentially benign in nature and should be treated as such. However, this conservative approach result in recurrence rates of 55% to 90%of the cases. Currently, the standard of care for ameloblastoma includes en bloc resection with 1-2 combine margin and immediate bone reconstruction. Despite the medical nature of a surgical resection, it may actually involve less morbidity than extensive hard and soft tissue resection with associated extensive morbidity that may be warranted in case of recurrence following inadequate primary treatment.
Imaging for the oral cavity neoplastic lesions finalSelf-employed
Presentation about the imaging of the oral cavity from anatomy, imaging modalities used to the most common neoplastic lesions met during clinical practice.
Imaging for the oral cavity neoplastic lesions final
Bone tumor alrafdain dina patho
1.
2. Osteoma. The radiog raph shows a pedunculatedOsteoma. The radiog raph shows a pedunculated
cancellousosteomaarising from the lingualsurface of thecancellousosteomaarising from the lingualsurface of the
mandib le near t he crest of t he alveolar ridge.mandib le near t he crest of t he alveolar ridge.
3. Osteoma. This compact osteo ma is composedOsteoma. This compact osteo ma is composed
ofof
dense bone. with only minimal marrowdense bone. with only minimal marrow
elements.elements.
4.
5.
6. Gardner syndrome. Panoramic radiographGardner syndrome. Panoramic radiograph
showing multip le osteomas of the mandible.showing multip le osteomas of the mandible.
8. Gardner syndrome . A segment of resected largeGardner syndrome . A segment of resected large
bowel showing polyp formationbowel showing polyp formation (arrow) .(arrow) .
9. Gardner syndrome. This patient has multiple,Gardner syndrome. This patient has multiple,
large epidermoid cysts. (Courtesy of Dr.large epidermoid cysts. (Courtesy of Dr.
William Welton.)William Welton.)
10.
11.
12.
13.
14. Radiograph illustrating mandibular benign osteoblastoma or
cementoblastoma without calcification that was associated with
periapical regions of permanent premolars (arrows).
25. Desmoplastic fibroma.Desmoplastic fibroma. Note evenly distributed and benign-Note evenly distributed and benign-
appearing fibroblasts in collagenousappearing fibroblasts in collagenous
stroma.stroma.
26. Desmoplastic fibroma.Desmoplastic fibroma. Note evenly distributed and benign-Note evenly distributed and benign-
appearing fibroblasts in collagenousappearing fibroblasts in collagenous
stroma.stroma.
27. Hemangioma of boneHemangioma of bone showing honeycomb radiographic pattern withshowing honeycomb radiographic pattern with
associated root resorption.associated root resorption.
29. Hemangioma of bone. Note numerous vascular channelsHemangioma of bone. Note numerous vascular channels
surrounded by trabeculae of bone.surrounded by trabeculae of bone.
30.
31.
32. OsteosarcomaOsteosarcoma surrounding the roots of first molar tooth.surrounding the roots of first molar tooth.
Note widened periodontal ligament.Note widened periodontal ligament.
33. A, Central low-grade osteosarcomaA, Central low-grade osteosarcoma of the mandible.of the mandible.
34.
35.
36. OsteosarcomaOsteosarcoma between a mandibular lateral incisor and a canine. Note slightbetween a mandibular lateral incisor and a canine. Note slight
widening of periodontalwidening of periodontal
ligaments of both teeth.ligaments of both teeth. BB andand C,C, Surgical specimen shows a malignant bone-Surgical specimen shows a malignant bone-
producing neoplasm occupying theproducing neoplasm occupying the
periodontal ligament space. The tooth is to the right, and alveolar bone is to theperiodontal ligament space. The tooth is to the right, and alveolar bone is to the
left.left.
37. OsteosarcomaOsteosarcoma of the mandible showing a sunburst pattern of tumorof the mandible showing a sunburst pattern of tumor
bone radiating from the alveolar ridge.bone radiating from the alveolar ridge.
38. Osteosarcoma of the mandibleOsteosarcoma of the mandible exhibiting sunburst pattern.exhibiting sunburst pattern.
39. C, CT scan of persistent tumor 15 years later, now a high-gradeC, CT scan of persistent tumor 15 years later, now a high-grade
tumor.tumor.
41. D, Surgical specimen of the high-grade tumor (chondroblasticD, Surgical specimen of the high-grade tumor (chondroblastic
osteosarcoma).osteosarcoma).
46. Osteosarcoma of jaw. The neoplastic bone (left) is clearly
distinguishable from the residual normal bone (right)).
47.
48.
49.
50.
51.
52. OsteosarcomaOsteosarcoma between a mandibular lateral incisor and a canine. Note slightbetween a mandibular lateral incisor and a canine. Note slight
widening of periodontal ligaments of both teeth.widening of periodontal ligaments of both teeth. BB andand C,C, Surgical specimenSurgical specimen
shows a malignant bone-producing neoplasm occupying the periodontalshows a malignant bone-producing neoplasm occupying the periodontal
ligament space. The tooth is to the right, and alveolar bone is to the left.ligament space. The tooth is to the right, and alveolar bone is to the left.
53.
54. AA andand B, OsteosarcomaB, Osteosarcoma composed of atypical cells in association withcomposed of atypical cells in association with
tumor bone.tumor bone.
71. Pigmented neuroectodermal tumor of infancy. The neoplastic
islands located between the bone trabeculae contain abundant
melanin pigment.
72. Pigmented neuroectodermal tumor of infancy. This example shows
the classic pattern of neuroblast-like cells surrounded by larger
melanin-containing cells.
73.
74.
75.
76.
77.
78. A, Anaplastic large cell lymphoma. B,A, Anaplastic large cell lymphoma. B,
Immunohistochemical stain for CD20 confirming B-cell lineage ofImmunohistochemical stain for CD20 confirming B-cell lineage of
tumor.tumor.
79. A, Anaplastic large cell lymphoma. B,A, Anaplastic large cell lymphoma. B,
Immunohistochemical stain for CD20 confirming B-cell lineage ofImmunohistochemical stain for CD20 confirming B-cell lineage of
tumor.tumor.
81. Burkitt's lymphomaBurkitt's lymphoma presenting as a periapicalpresenting as a periapical
radiolucency (mandibular left first molar). The patient alsoradiolucency (mandibular left first molar). The patient also
had a numb lip.had a numb lip.
82.
83.
84. Burkitt's lymphomaBurkitt's lymphoma exhibiting starry sky effect. Pale cells areexhibiting starry sky effect. Pale cells are
tingible body macrophages.tingible body macrophages.
85. Angiocentric T-cell lymphoma. A. This 62 ~ ye a r- o l d man had a
destructive palatal lesion that proved to be a "l-celllymphoma. and
evaluation showed cervical lymph node involvement aswell. B.
Resolution of the lesion 1 month later.after multiagent chemotherapy
87. Angiocentric T-cell lymphoma. Thismediumpower photomicrograph
shows atypical lymphoid cells infiltrating the wall and filling the lumen
of a blood vessel. Such a pattern is termedangiocentric (meaning
"around blood vessels").
94. Multiple myelomaMultiple myeloma showing multiple punched-out lesions of theshowing multiple punched-out lesions of the
skull.skull.
95. A,A, Axial CT of a 71-year-old man withAxial CT of a 71-year-old man with multiplemultiple
myelomamyeloma showing multiple lytic lesions in the mandible.showing multiple lytic lesions in the mandible.
B,B, Multiple lytic lesions also involved the cranium.Multiple lytic lesions also involved the cranium.
96. A,A, Axial CT of a 71-year-old man withAxial CT of a 71-year-old man with multiplemultiple
myelomamyeloma showing multiple lytic lesions in the mandible.showing multiple lytic lesions in the mandible.
B,B, Multiple lytic lesions also involved the cranium.Multiple lytic lesions also involved the cranium.
97.
98.
99.
100. Multiple myelomaMultiple myeloma composed of neoplastic plasma cells.composed of neoplastic plasma cells. BB andand
C,C, Immunohistochemical stains for kappa (Immunohistochemical stains for kappa (BB) and lambda () and lambda (CC))
light chains demonstrating monoclonality of the plasma cells.light chains demonstrating monoclonality of the plasma cells.
101. Multiple myelomaMultiple myeloma composed of neoplastic plasma cells.composed of neoplastic plasma cells. BB andand
C,C, Immunohistochemical stains for kappa (Immunohistochemical stains for kappa (BB) and lambda () and lambda (CC))
light chains demonstrating monoclonality of the plasma cells.light chains demonstrating monoclonality of the plasma cells.
102.
103.
104. langerhans cell histiocytosis. There is a diffuse infiltrate of pale-
staining langerhans cells intermixed with numerous red granular
eosinophils.