Plural of gangrene; instances or types of tissue death caused by infection or lack of blood supply.
From Greek 'gangraina' (eating sore), from 'gra' (to gnaw). The plural form reflects multiple cases or types of this condition.
Different types of gangrene—wet, dry, gas gangrene—each spread in different ways, and understanding these distinctions helped doctors develop better treatment strategies beyond just amputation.
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