title: Malacoplakia of the gallbladder.
abstract: A case of malacoplakia of the gallbladder is described. The cytoplasm of histiocytes in the gallbladder wall was filled with granules positive for periodic acid-Schiff, von Kossa's, and Perls' stains, which is highly suggestive of malacoplakia. Both local inflammation and recent neoplasia could have played a role in the histogenesis of the malacoplakia.
mesh_terms: D002763:Cholecystectomy; D005705:Gallbladder Diseases / Q000473:pathology*; D006644:Histiocytes / Q000473:pathology; D006801:Humans; D008287:Malacoplakia / Q000473:pathology*; D008297:Male; D008875:Middle Aged