title: Polypoid pleomorphic sarcoma of the colon.
abstract: In contrast to common colonic epithelial neoplasms, polypoid mesenchymal tumors of the colon are extremely rare. The majority of uncommon gastrointestinal mesenchymal tumors are associated with the so-called gastrointestinal stromal tumors (GIST). We present a case of a rare colonic pleomorphic sarcoma, macroscopically mimicking a common epithelial colonic polyp, which did not match the criteria of GIST. In this case report we discuss the clinical and pathological characteristics of a rare polypoid-shaped, pleomorphic colonic sarcoma and refer a mark-off to other rare mesenchymal neoplasms of the gut.
authors.affiliation: Chirurgische Klinik und Poliklinik, Bochum, Germany. bernd@roetman.de
authors.forename: Bernd
authors.initials: B
authors.lastname: Roetman
authors.forename: Thomas A
authors.initials: TA
authors.lastname: Schildhauer
authors.forename: Cornelius
authors.initials: C
authors.lastname: Kuhnen
authors.forename: Eva
authors.initials: E
authors.lastname: Wardelmann
authors.forename: Gert
authors.initials: G
authors.lastname: Muhr
mesh_terms: D000368:Aged; D003082:Colectomy; D003110:Colonic Neoplasms / Q000473:pathology* / Q000601:surgery; D003937:Diagnosis, Differential; D046152:Gastrointestinal Stromal Tumors / Q000473:pathology*; D006801:Humans; D008297:Male; D012509:Sarcoma / Q000473:pathology* / Q000601:surgery