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Open Access Mandibular Fracture and Necrotizing Sialometaplasia in a Rabbit

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A 7-mo-old female New Zealand white rabbit presented with hemorrhage of the gingiva surrounding a loose lower right incisor. Antemortem conventional radiographs revealed only a small bone fragment adjacent to the left mandible's body. In light of a provisional diagnosis of mandibular fracture, the rabbit was euthanized. Postmortem radiographs of the disarticulated mandible demonstrated mandibular symphyseal fracture and comminuted fracture of the ramus and body of the left mandible. According to histopathology, the left submandibular salivary gland had necrotizing sialometaplasia, a nonneoplastic condition of the salivary glands that is caused by ischemic infarction. Although rabbits have been used as animal models of mandibular fracture and necrotizing sialometaplasia, no nonexperimental case of such conditions had been reported previously.

Document Type: Case Report

Affiliations: 1: Department of Comparative Medicine, Penn State Hershey Medical Center, Hershey, Pennsylvania, USA; Animal Resources Center, University of Texas Medical Branch, Galveston, Texas, USA. 2: Department of Comparative Medicine, Penn State Hershey Medical Center, Hershey, Pennsylvania, USA

Publication date: February 1, 2013

More about this publication?
  • Comparative Medicine (CM), an international journal of comparative and experimental medicine, is the leading English-language publication in the field and is ranked by the Science Citation Index in the upper third of all scientific journals. The mission of CM is to disseminate high-quality, peer-reviewed information that expands biomedical knowledge and promotes human and animal health through the study of laboratory animal disease, animal models of disease, and basic biologic mechanisms related to disease in people and animals.

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