title: Malacoplakia of the colon in association with colonic adenocarcinoma.
abstract: We present two cases of malacoplakia of the colon in association with adenocarcinoma. The foci of malacoplakia characteristically comprised submucosal proliferations of histiocytes and chronic inflammatory cells with the typical cytoplasmic inclusions known as Michaelis-Gutmann bodies. These foci were found, respectively, adjacent to, and in contiguity with, a well- and moderately differentiated colonic adenocarcinoma. The possible pathogenetic relationship between these two processes is discussed.
authors.affiliation: Department of Pathology, Yale University School of Medicine, New Haven, Connecticut.
authors.forename: C A
authors.initials: CA
authors.lastname: Moran
authors.forename: B
authors.initials: B
authors.lastname: West
authors.forename: I S
authors.initials: IS
authors.lastname: Schwartz
mesh_terms: D000230:Adenocarcinoma / Q000150:complications*; D000368:Aged; D003108:Colonic Diseases / Q000150:complications* / Q000209:etiology / Q000473:pathology; D003110:Colonic Neoplasms / Q000150:complications*; D006801:Humans; D008287:Malacoplakia / Q000150:complications* / Q000209:etiology / Q000473:pathology; D008297:Male; D008875:Middle Aged