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Spontaneous complex odontoma in a Sprague-Dawley rat
Dong Deuk Jang1, Chuel-Kyu Kim, Byeongwoo Ahn
1Korea Food and Drug Administration, Department of Pathology, Seoul.
The Journal of Veterinary Medical Science
|May 10, 2002
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.