title: Polypoid arteriovenous malformation in the jejunum of a child that mimics intussusception.
abstract: Polypoid arteriovenous malformations, which are localized in the colon, are extremely rare in adults, with only 7 cases published to date. Here we present the case of a 6-year-old girl with a jejunal polypoid tumor that a sonogram and a computed tomographic scan have shown to resemble intussusception. Histologically, numerous large ectatic veins intermixed with small-caliber arteries, venules, arterioles, and capillaries were observed in the intestinal wall. A retrospective computed tomographic scan 3-dimensional angiographic reconstruction demonstrated that this may be a diagnostic characteristic. Clinical and morphologic comparisons with previously reported cases were discussed.
authors.affiliation: Department of Pathology, National Institute of Pediatrics, Mexico, DF CP 04830, Mexico. rrrj60@hotmail.com
authors.forename: Rodolfo
authors.initials: R
authors.lastname: Rodriguez-Jurado
authors.forename: Sara Solórzano
authors.initials: SS
authors.lastname: Morales
mesh_terms: D001165:Arteriovenous Malformations / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D001808:Blood Vessels / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D007443:Intussusception / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D007579:Jejunal Diseases / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D007583:Jejunum / Q000098:blood supply* / Q000473:pathology / Q000601:surgery; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D014656:Vascular Surgical Procedures