A 45-year-old female presents with painful lesions on her lower limbs and ears. She is a smoker, and has a history of recreational drug use. Purpuric, necrotic lesions are noted on both lower extremities, in addition to tender purpura on both ears. A biopsy is performed which demonstrates leukocytoclastic vasculitis. Use of which substance is most likely to be associated with this presentation?
A 21-year-old female is referred with a one-year history of neck pain, difficulty swallowing, and … Read more