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Necrotic, usually black, tissue due to obstruction, diminution, or loss of blood supply. Gangrene may be wet or dry.
Wet gangrene often follows a crushing injury. It has an offensive odor and spreads rapidly. Dry gangrene becomes cold, dry, and shriveled and eventually turns black.
Gangrenous ear secondary to cocaine levamisole toxicity
Palpable purpura and gangrene in Coumadin necrosis
Deep purpura and black skin of gangrene in acute meningococcemia
Necrotic gangrenous toes in a patient with bacterial sepsis