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Dermatology · Vascular disorders: cutis marmorata telangiectatica congenita
Sample itemA newborn has a persistent, fixed, net-like violaceous pattern on one leg that does not fade on warming, with slight limb atrophy. What is this?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Cutis marmorata telangiectatica congenita
Cutis marmorata telangiectatica congenita is a congenital vascular malformation with a fixed reticulate pattern that persists on rewarming, sometimes with ulceration and limb hypoplasia. Physiological cutis marmorata fades on warming. Most cases improve over the first years of life.
Option by option
A. Port-wine stain
A port-wine stain is a flat uniform macular malformation.
B. Livedo from vasculitis
Vasculitic livedo is not congenital.
C. Physiological cutis marmorata
Physiological marmorata resolves with warmth.
D. Cutis marmorata telangiectatica congenita (correct)
Correct. A fixed net-like pattern that persists on warming indicates CMTC.
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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