Jonathan S. Crane, MD

A 69-year-old man with a long history of lymphedema secondary to repeated cellulitis sought medical care for mildly pruritic, nontender, purple nodules that had erupted on the bottom and side of one foot 6 months earlier. Scale surrounded the nodules.

One week after redness and swelling arose on the left second finger, a 33-year-old man sought medical evaluation. He reported some tenderness and difficulty in flexing the digit but could not recall injuring the finger. The medical history included treatment of seborrheic dermatitis and acne.