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A 20+ year-old man presents for evaluation of a scaly red eruption on the right upper extremity and right side of the torso, present for only 6 months.
HISTORY: A 20+ year-old man presents for evaluation of a scaly red eruption on the right upper extremity and right side of the torso, present for only 6 months. The eruption is described as red, scaly, flaky, itchy, painful, and bleeding. He has tried topical steroids without improvement. He was