title: Long pedunculated colonic polyp with diverticulosis: case report and review of the literature.
abstract: Colonic muco-submucosal elongated polyp is a rare entity (0.39% in an endoscopic polypectomy series). It is an elongated drumstick-shaped lesion characterized by oedematous, loose connective tissue with a dense submucosal layer showing dilation of blood and lymphatic vessels. First described as a polypoid lesion associated with diverticular disease of the sigmoid colon, it was histologically characterized as a separate entity by Kelly in 1991. In that study, the author reported eight cases in which a red or brown mucosal protrusion or polyp were associated with diverticular disease, and described the syndrome as "polypoid prolapsing mucosal folds in diverticular disease". In 1994, Matake et al. described a new entity defined as colonic muco-submucosal elongated polyp. Herein, we describe another case in a 77-year-old woman with abdominal pain, followed by a review of the literature.
authors.affiliation: Department of Human Pathology and Oncology, Section of Anatomic Pathology, University of Siena, Italy. maradot@libero.it
authors.forename: M R
authors.initials: MR
authors.lastname: Ambrosio
authors.forename: B J
authors.initials: BJ
authors.lastname: Rocca
authors.forename: A
authors.initials: A
authors.lastname: Ginori
authors.forename: A
authors.initials: A
authors.lastname: Barone
authors.forename: M
authors.initials: M
authors.lastname: Onorati
authors.forename: S
authors.initials: S
authors.lastname: Lazzi
mesh_terms: D000368:Aged; D012809:Colon, Sigmoid / Q000473:pathology; D003111:Colonic Polyps / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D003113:Colonoscopy; D003937:Diagnosis, Differential; D043963:Diverticulosis, Colonic / Q000175:diagnosis / Q000473:pathology*; D005260:Female; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology