title: Odontogenic keratocysts presenting as periapical disease.
abstract: This article presents four examples of odontogenic keratocysts which appeared radiographically as periapical cysts. This unusual presentation of odontogenic keratocysts is discussed, and its significance for the clinician is reviewed. This article emphasizes the need for microscopic examination of all material surgically removed from the periapical region.
mesh_terms: D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D007633:Keratins / Q000378:metabolism; D008297:Male; D008439:Maxillary Diseases / Q000000981:diagnostic imaging / Q000473:pathology; D008875:Middle Aged; D009807:Odontogenic Cysts / Q000000981:diagnostic imaging* / Q000473:pathology; D011842:Radicular Cyst / Q000000981:diagnostic imaging* / Q000473:pathology; D011859:Radiography
chemical_list: D007633:Keratins