Necrose cutânea e fasceíte necrotizante pós-injeção de heroína

Necrotizing fasciitis is rapidly progressive soft tissues infection with a high mortality rate. The definitive diagnosis is made intraoperatively, after surgical exploration, by the presence of necrosis of the fascia. Left lower limb necrotizing fasciitis in a drug user after heroin injection is described. In this case report the pathogenic agent and the location of the infection are unusual. Early surgical treatment is important to avoid major complications.