title: Pre-elastofibroma-like colonic polyp: another cause of colonic polyp.
abstract: We present a case of pre-elastofibroma-like lesion, a kind of elastic-producing fibrous tumor. The small colonic polyp, which was found in a 49-year-old asymptomatic man in association with a large colonic adenoma, showed submucosal nodular deposits of fine granular or fibrillar eosinophilic materials with interspersed fibroblastic cells. Elastic stain revealed these deposits to consist mainly of dark gray granular or partially fibrillar dense elastinophilic materials, most of which were digested with elastase. This stromal lesion somewhat resembled a pre-elastofibroma. Therefore, pre-elastofibroma-like lesions should be kept in mind as a possible origin of colonic polyp.
authors.affiliation: Second Department of Pathology, Okayama University Medical School, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Hayashi
authors.forename: Y
authors.initials: Y
authors.lastname: Ohtsuki
authors.forename: H
authors.initials: H
authors.lastname: Sonobe
authors.forename: J
authors.initials: J
authors.lastname: Iwata
authors.forename: M
authors.initials: M
authors.lastname: Furihata
authors.forename: T
authors.initials: T
authors.lastname: Hikita
authors.forename: T
authors.initials: T
authors.lastname: Kishino
authors.forename: T
authors.initials: T
authors.lastname: Akagi
mesh_terms: D003111:Colonic Polyps / Q000473:pathology*; D005350:Fibroma / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011230:Precancerous Conditions / Q000473:pathology*