[Leiomyosarcoma of the small bowel with massive gastrointestinal bleeding].
D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D007414:Intestinal Neoplasms / Q000150:complications*; D007421:Intestine, Small; D007890:Leiomyosarcoma / Q000150:complications*