Itchy leg bullae after a trip outdoors

A black woman, aged 65 years, presented with a one-week history of pruritic bullae. The patient reported participating in outdoor activities in the days prior to the eruption. Her medical history included type 2 diabetes mellitus but was notably negative for any history of lymphoproliferative disorders. The woman had begun taking colestipol (Colestid) three weeks earlier.

Otherwise, no new medications were ...