Elodontoma in captive southern red-backed voles (Myodes gapperi).
Five southern red-backed voles (Myodes gapperi) of the first generation of a wild-caught breeding colony were presented with lesions at the maxillary incisors consistent with elodontoma. The affected animals had a history of chronic weight loss, were >16 months of age, and were siblings. Radiographs of the head showed multiglobular to irregularly outlined mineral opacity masses at the apices of the maxillary incisors. On necropsy, maxillary incisor teeth were not grossly visible, and a gingival ulceration was observed at the expected site of eruption. Microscopically, the apical region of the maxillary incisors was thickened or replaced by irregular dental tissue masses consistent with elodontoma. This is the first report to describe elodontoma in red-backed voles.
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