Sonographic Evaluation of Fournier's Gangrene

Fournier's gangrene is a rare type of necrotizing fasciitis specific to the superficial fascia and subcutaneous tissues of the external genitalia, perineum, perirectal, and ischiorectal regions. It is usually diagnosed clinically, and imaging is used to support the diagnosis, assess the extent of the necrosis, and aid in surgical planning. Computed tomography (CT) is the primary imaging modality to diagnose Fournier's gangrene, usually after symptoms are severe. Sonography may be used to diagnose early stages of this disease and to differentiate it from intrascrotal pathology or benign cellulitis. A case of Fournier's gangrene is presented that discusses sonographic findings of Fournier's gangrene and the disease process.