Massive rectal bleeding following faecal impaction.
D000368:Aged; D005244:Fecal Impaction / Q000150:complications*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D008297:Male; D012002:Rectal Diseases / Q000209:etiology*; D014456:Ulcer / Q000209:etiology