title: Spontaneous complex odontoma in a Sprague-Dawley rat.
abstract: Complex odontoma from a female Sprague-Dawley rat is described histopathologically. Necropsy revealed a hard (bony), white mass (3.0 x 3.0 x 2.1 cm) on the left mandible. Microscopically, the mass consisted of islands or nests of epithelial and mesenchymal elements that formed abortive tooth structures. In other areas, tooth formation consisted of a pulp cavity lined by layers of odontoblasts, dentin, enamel, and ameloblasts. Concerning all features of normal tooth formation which was differentiated and mineralized yet completely disorganized, the diagnosis of complex odontoma was recommended.
authors: Korea Food and Drug Administration, Department of Pathology, Seoul.
authors: Dong Deuk
authors: DD
authors: Jang
authors: Chuel-Kyu
authors: CK
authors: Kim
authors: Byeongwoo
authors: B
authors: Ahn
authors: Jin Seok
authors: JS
authors: Kang
authors: Ki Tack
authors: KT
authors: Nam
authors: Dae Joong
authors: DJ
authors: Kim
authors: Dong Un
authors: DU
authors: Han
authors: Kwonil
authors: K
authors: Jung
authors: Han-Kook
authors: HK
authors: Chung
authors: Seung-Kwon
authors: SK
authors: Ha
authors: Changsun
authors: C
authors: Choi
authors: Wan-Seob
authors: WS
authors: Cho
authors: Junghyun
authors: J
authors: Kim
authors: Chanhee
authors: C
authors: Chae
mesh_terms: D000818:Animals; D005260:Female; D006651:Histocytochemistry / Q000662:veterinary; D008339:Mandibular Neoplasms / Q000473:pathology / Q000662:veterinary*; D009810:Odontoma / Q000473:pathology / Q000662:veterinary*; D051381:Rats; D017207:Rats, Sprague-Dawley