Pyoderma gangrenosum (PG) associated with levamisole-adulterated cocaine: Clinical, serologic, and histopathologic findings in a cohort of patients

PG may occur after exposure to levamisole-adulterated cocaine. Clinical and histopathological findings resemble those seen in conventional forms of PG, whereas serologic findings mirror those seen in other levamisole-associated vasculopathic or vasculitic eruptions. Cocaine avoidance represents a cornerstone of management in these patients.