Ophthalmology Questions and Answers Part-4

1. Intracranial complications of bacterial orbital cellulitis (all true except) :
a) Meningitis
b) Brain abscess
c) Cavernous sinus thrombosis
d) Sub periosteal abscess

Answer: d

2. Regarding Tolosa‐ Hunt syndrome (all true except ):
a) is a diagnosis of exclusion
b) It is a common condition
c) Caused by non – specific granulomatous inflammation of the cavernous sinus ,superior orbital fissure and/ or orbital apex
d) Its clinical course characterized by remissions and recurrences

Answer: b

3. Lymphangiomas are :
a) Neoplasms
b) Functional
c) Malignant
d) Vascularmalformations

Answer: d

4. The types of classification of carotid – cavernous fistulae include all the following except:
a) Aetiological
b) Hemodynamics
c) Pathological
d) Anatomical

Answer: c

5. Regarding direct carotid – cavernous fistula :
a) Representing80% of all cases
b) Also called dural shunt
c) Trauma is responsible for 10% of cases
d) Middle – aged hypertensive women are at particular risk

Answer: d

6. Regarding superficial dermoid cyst :
a) Painful nodule
b) Most commonly located in the inferotemperal part of the orbit
c) C T shows a homogenous well – circumscribed lesion
d) Treatment is by excision in toto

Answer: d

7. Associations with encephalocele (all true except):
a) Broad nasal bridge and cleft palate
b) Microphthalmos
c) Neurofibromatosis
d) Morning glory syndrome

Answer: c

8. Regarding capillary haemangioma :
a) Boys are affected more commonly than girls
b) Is the least common tumor of the orbit and periorbital areas in childhood
c) The tumor is composed of anastomosing small vascular channels without true encapsulation
d) Present only as a small isolated lesion of minimal clinical significance

Answer: c

9. The indications of treatment of capillary haemangioma include all the following except:
a) Amblyopia secondary to induced astigmatism , anisometropia and occlusion
b) Optic nerve compression
c) Exposure keratopathy
d) Painand tenderness

Answer: d

10. Regarding cavernous haemangioma:
a) Is avascular malformation that occurs in children
b) It has a female preponderance of 40%
c) Although it may develop anywhere in the orbit , it most frequently occurs within the medial part of the muscle cone just behind the globe
d) It's histologyshows endothelial – lined vascular channels of varying size separated by fibrous septae

Answer: d