Board Certified Ophthalmologist Uveitis and Ocular Inflammation 2

Question 1

Which laboratory test is most useful in the initial workup of a patient with suspected sarcoid uveitis?

Accepted Answer

Serum angiotensin-converting enzyme (ACE)

Answer

Serum ACE is elevated in approximately 60–75% of patients with active sarcoidosis and is a useful screening test for sarcoid uveitis, though it lacks specificity.

Question 2

What is the most common cause of infectious posterior uveitis in immunocompetent patients in the United States?

Accepted Answer

Toxoplasma gondii

Answer

Toxoplasma gondii is the most common cause of infectious posterior uveitis in immunocompetent individuals, presenting as focal retinochoroiditis typically adjacent to an old pigmented scar.

Question 3

Which fundus finding is most characteristic of active toxoplasmic retinochoroiditis?

Accepted Answer

White fluffy lesion adjacent to an old pigmented scar ('headlight in fog')

Answer

Active toxoplasmic retinochoroiditis characteristically shows a white, fluffy active lesion adjacent to an old pigmented chorioretinal scar, producing the classic 'headlight in fog' appearance.

Question 4

An AIDS patient develops painless progressive vision loss with a 'pizza pie' fundus appearance showing retinal whitening and hemorrhage. What is the most likely diagnosis?

Accepted Answer

CMV retinitis

Answer

CMV retinitis in immunocompromised patients classically presents with a 'pizza pie' or 'scrambled eggs and ketchup' appearance of retinal whitening (necrosis) with hemorrhage along vascular arcades.

Question 5

Which anterior chamber finding is characteristic of Fuchs heterochromic iridocyclitis (FHI)?

Accepted Answer

Fine stellate KPs distributed across the entire corneal endothelium without posterior synechiae

Answer

FHI is characterized by fine stellate KPs distributed across the entire corneal endothelium without posterior synechiae formation, distinguishing it from other forms of chronic anterior uveitis.

Board Certified Ophthalmologist Practice Test

Board Certified Ophthalmologist Practice Test

Board Certified Ophthalmologist Uveitis and Ocular Inflammation 2