title: Carcinoid tumor associated with vascular malformation as a cause of massive gastric bleeding.
abstract: Massive gastric bleeding in a 28-yr-old woman requiring emergency surgical treatment was found to originate from a polypoid carcinoid tumor 1.3 cm in diameter. Histologically, the tumor was found to be associated with a complex vascular malformation apparently originating from the underlying submucosa, crossing the tumor and ending in large mucosal sinusoids that opened on the mucosal surface. A similar clinical presentation was reported in three previous cases of small gastric carcinoids, one of which revealed an anomalous intratumoral bleeding artery. We recommend that in the absence of more common causative lesions of gastric bleeding, gastric carcinoid be considered in cases of focal massive hemorrhage requiring emergency treatment.
authors.affiliation: Department of General Surgery, University of Parma, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Roncoroni
authors.forename: R
authors.initials: R
authors.lastname: Costi
authors.forename: G
authors.initials: G
authors.lastname: Canavese
authors.forename: V
authors.initials: V
authors.lastname: Violi
authors.forename: C
authors.initials: C
authors.lastname: Bordi
mesh_terms: D000328:Adult; D001165:Arteriovenous Malformations / Q000150:complications* / Q000473:pathology / Q000601:surgery; D002276:Carcinoid Tumor / Q000098:blood supply / Q000150:complications* / Q000473:pathology / Q000601:surgery; D004630:Emergencies; D005260:Female; D005753:Gastric Mucosa / Q000098:blood supply*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D006801:Humans; D013274:Stomach Neoplasms / Q000098:blood supply / Q000150:complications* / Q000473:pathology / Q000601:surgery