Massive gastrointestinal bleedding in children due to Meckel's diverticulum with ulceration.
D002648:Child; D006471:Gastrointestinal Hemorrhage; D006470:Hemorrhage; D006801:Humans; D007223:Infant; D008467:Meckel Diverticulum
HEMORRHAGE, GASTROINTESTINAL/in infancy and childhood