Although Meckel's diverticulum is the most common congenital abnormality of the gastrointestinal (GI) tract, complications in adults are rare, especially in the elderly. Intestinal obstruction is the most common complication in the adult, and inflammation mimicking acute appendicitis may also occur. Lower GI bleeding as a result of Meckel's diverticulum with ectopic gastric mucosa is distinctly unusual among the elderly, with most previous case reports involving patients under the age of 40. The case we report involved a 91-year-old man with massive lower GI hemorrhage found to be due to a Meckel's diverticulum with ectopic gastric mucosa.
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