(BMJ) - A 35-yo man complained of multiple boils in his perianal region that were unresponsive to repeated I & D and antibiotics over 4 yrs. Exam revealed fistula-in-ano w/ multiple external openings. The cause was confirmed on histopathologic exam. What is it?
Tuberculosis
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Syphilis
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Anal carcinoma
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Gonorrhea
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Crohn disease
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(BMJ) - A 46-yo African American man w/ uncontrolled DM and HTN presented w/ SOB and confusion. Exam: white, powdery deposits on face and limbs. Labs: BUN=100 mg/dL, Cr=7.3 mg/dL. The skin findings resolved after 10 days of hemodialysis. What caused the powdery substance?
Xerosis
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Nephrogenic fibrosing dermopathy
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Calcinosis cutis
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Calciphylaxis
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Crystallized urea
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