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Ophthalmology · Retina: angioid streaks
Sample itemA 40-year-old woman has leathery, plucked-chicken-like skin folds at the neck and axillae and reduced central vision. Fundus shows dark irregular lines radiating from the optic disc, with a choroidal neovascular membrane. Which condition is associated?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Pseudoxanthoma elasticum
Angioid streaks are cracks in a calcified Bruch membrane and are classically associated with pseudoxanthoma elasticum, also with Paget disease, sickle cell disease and Ehlers-Danlos syndrome. The danger is choroidal neovascularisation, treated with anti-VEGF. Skin folds with a plucked chicken appearance are the clue.
Option by option
A. Sturge-Weber syndrome
Sturge-Weber syndrome causes choroidal haemangioma and glaucoma.
B. Pseudoxanthoma elasticum (correct)
Correct. Pseudoxanthoma elasticum is the classic association.
C. Marfan syndrome
Marfan syndrome causes ectopia lentis and myopia, not angioid streaks.
D. Neurofibromatosis type 1
Neurofibromatosis causes Lisch nodules and optic glioma.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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