Malignant leiomyoma of the small intestine.
D006801:Humans; D007421:Intestine, Small; D007422:Intestines; D007889:Leiomyoma; D009369:Neoplasms; D010538:Peritonitis / Q000209:etiology*
INTESTINE, SMALL/neoplasms; LEIOMYOMA; PERITONITIS/etiology and pathogenesis