Test 160  (Ocular pathology )

1. The following are classifications used for choroidal melanoma:

a. Callender classification

b. Scheffer classification

c. Zimmer classification

d. Reese Ellsworth classification

e. Scheie classification
 

Answera.T   b.F   c.T    d.F   e.F
Scheffer and Scheie classifications are for grading the angle of the trabecular meshwork. Reese Ellsworth classification is used to predict the possibility of retaining the eye in retinoblastoma.
 
 

2. Trouton's giant cells are seen in:

a. sarcoidosis

b. liposarcoma

c. chalazion

d. Erdheim Chester disease 

e. juvenile xanthogranuloma
 

Answera.F   b.T  c.F  d.T  e.T
Sarcoidosis shows Langhan's giant cells and chalazion shows foreign body giant cells.
 
 

3. The matching of the following are correct:

a. Rosenthal fibre: meningioma

b. Psamomma body: glioma

c. asteroid body: sarcoidosis

d. Verocay body: neurilemmoma

e. Cowdry type A body: cells infected with
    herpes simplex virus
 

Answer
a.F   b.F  c.T   d.T  e.T
Rosenthal fibre is seen in glioma and Psamomma body in meningioma.
 

4. Flexner-Wintersteiner rosettes occur in:

a. retinoblastoma

b. pinealoma

c. neuroblastoma

d. medulloepithelioma 

e. choroidal melanoma

Answer
a.T   b.T  c.F  d.F  e.F
 
 

5. Intraocular cartilage occurs in:

a. dictyoma

b. phthisis bulbi

c. age-related macular degeneration

d. optic disc drusen

e. trisomy 13
 

Answer
a.T   b.T  c.F  d.F  e.T
Intraocular cartilage occurs in:
a. trisomy 13
b. chromosome 18 deletion 
c. PHPV
d. dictyoma (medulloepithelioma)
e. phthisis bulbi
f. angiomatosis retinae
.

 

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