2. Describe:
Patient having red mass protruding in the caries
cavity in lower 6
Hsitology:
decalcified section showing tooth with large
cavity of pulp tissue into pulp cavity , this pulp
tissue contain granulation tissue covered by thin
layer of epithelium
Diagnosis: Pulp polyp
3. Patient:
Patient have protruded whitish lesion
(sequestrum)
Histo. :
Decalcified section showing bone marrow
infiltrated by acute inflammatory cells
Diagnose: Acute Osteomyelitis
4. Histo :
Decalcified section showing bone marrow rich of
chronic inflammatory cells
Diagnose:
Chronic Osteomyelitis
7. 1- Diagnosis : Thyoglossal cyst
2- Describe the clinical picture: Swelling at the
midline of the neck
3- Describe the histological picture : Cyst cavity
in the posterior part lined by S.S.E & C.T and
thyroid follicles in the upper part of slide
8. 1- Describe the gross appearance of the lesion :-
Extracted canine in association with cystic lesion,
the cyst attached to the tooth at CEJ
2- Describe the radiograph pic. :-
Unilocular well defined periapical lesion in
association with unerupted tooth
3- Describe the histology of pic. :
Cyst cavity lined by non-keratinized epithelium
4- Diagnosis: Dentigerous cyst
9. Diagnosis : Nevoid basal cell carcinoma ( Gorlin
Syndrome )
Describe : 1- Multiple basal cell carcinoma
2- well defined radiolucency
3- The histology of odontogenic .
. keratocyst
1
2
3
10. Clinical Pic :
Cyst associated with erupted upper maxillary
Histology of eruption cyst:
cyst cavity lined by non-keratinized epithelium &
C.T
11. 1- Extracted tooth associated with cystic lesion
2- Odontogenic Keratocyst
3- Radiolucent lesion in the posterior part of
mandible ( associated with vital tooth ) ,
it may be :
Central intraosseuos tumor
Metastatic tumor,
Odontogenic tumor
Odontogenic keratocyst
1
2
3
12. 1- Gingival lesion showing nodular mass of the
mandibular facial gingiva
2- Cyst cavity lined by epithelium contain :
stellate reticulum ( ameloblast like cells ),
Ghost cells, calcification area .
C.T rich of inflammatory cells
3- Well defined radiolucent lesion in associated
with unerupted tooth
D.D : Gingival fibromas, Gingival cyst, periapical
giant cell granulomas
Diagnosis : Gorlin cyst
1
2
3
13. Clinical presentation:
huge swelling of the jaw
X-ray feature :
multilocular radiolucency, bone destruction is
replaced by small well defined radiolucent areas
giving rise to the honeycomb or soap-bubble
appearance.
Histopathological feature:
long anastomosing cords of epithelium cells
bounded by columnar/ cuboidal cells, cells within
cords are stellate reticulum like cells.
Identify the case:
plexiform type of ameloblastoma
14. D.D Radiographically:-
- folliacular type of ameloblastoma.
- plexiform type of ameloblastoma.
- Ameloblastic fibroma
Microscopic variant of the lesion:
it is formed of islands of epithelial follicles with
microcyst or multi cyst, the individual follicles
show central mass of stellate reticulum like cells
surrounded by single peripheral layer of
ameloblast- like cells, the nuclei of the peripheral
cells have reversed polarity.
Identify the condition:
folliacular type of ameloblastoma.
15. D.D: Radiographically:-
- pindborg tumor
- AOT ( Adenomatoiod odontogenic tumor )
- Gorlin cyst
- Ameloblastic fibroma
Arrow structure:
round area of concentric calcification deposits (
. liesegang rings ) seen in amyloid material.
Identify the condition:
pindborg tumor
16. Clinical feature:-
Swelling seen in the posterior mandible
Radiograph describe:
Radiopaque areas surrounded by a radiolucent
. rim
Identify the case: Complex odontome
17. Describe the radiograph:-
Multilocular radiopacity due to large number of
denticles ( looks like a bag of teeth
The surgical specimen of the lesion describe it:
Multiple teeth structure
Diagnosis: Compound odontome
18. Histopathology:
Composed of loose C.T containing little collagen
and large amounts of an intercellular substance,
so it looks like dental pulp.
Identify the case:
Odontogenic myxoma
19.
20. Clinical : unilateral swelling of the jaw
X-ray : radiopacity in lower anterior of the jaw
showing giantly form cementoma
21. Asymptomatic swelling at lateral aspect of the
neck
Lined by pseudostratified squamous epithelium
,the wall contains lymphoid tissue
Cervical lymphoepithelial Cyst
