ABO Ocular Oncology 2

Question 1

Which chromosomal abnormality in uveal melanoma is most strongly associated with metastatic risk?

Accepted Answer

Monosomy 3

Answer

Trisomy 8q

Answer

Gain of 6p

Answer

Loss of 1p

Question 2

Primary intraocular lymphoma (PIOL) most commonly involves which ocular structures?

Accepted Answer

Vitreous and subretinal space

Answer

Iris and anterior chamber

Answer

Choroid and sclera

Answer

Ciliary body and zonules

Question 3

What is the hallmark CT finding of retinoblastoma in children?

Accepted Answer

Calcification within the intraocular mass

Answer

Hypodense mass with ring enhancement

Answer

Isodense mass with cystic change

Answer

Homogeneous enhancement after contrast

Question 4

Conjunctival melanoma most frequently arises from which precursor lesion?

Accepted Answer

Primary acquired melanosis (PAM) with atypia

Answer

Conjunctival papilloma

Answer

Conjunctival compound nevus

Answer

Pinguecula

Question 5

What is the most common orbital malignancy in adults?

Accepted Answer

Lymphoma

Answer

Cavernous hemangioma

Answer

Rhabdomyosarcoma

Answer

Pleomorphic adenoma

Question 6

Which funduscopic feature best distinguishes choroidal melanoma from choroidal metastasis?

Accepted Answer

Orange lipofuscin pigment overlying the tumor

Answer

Subretinal fluid

Answer

Posterior pole location

Answer

Bilateral presentation

Question 7

Orbital rhabdomyosarcoma in children most commonly presents at which age range?

Accepted Answer

5-10 years

Answer

Under 2 years

Answer

10-15 years

Answer

15-20 years