Acute hemorrhagic necrosis of the gastrointestinal tract.
D000368:Aged; D000369:Aged, 80 and over; D005762:Gastroenterology; D006471:Gastrointestinal Hemorrhage; D041981:Gastrointestinal Tract; D006470:Hemorrhage; D006801:Humans; D009336:Necrosis
GASTROENTEROLOGY/in old age; HEMORRHAGE, GASTROINTESTINAL/in old age; NECROSIS/in old age