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Open Access Lipoma in the Mediastinum of a Prairie Dog (Cynomys ludovicianus)

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A large, firm lipoma was found in the cranial mediastinum of a 3–year–old female prairie dog (Cynomys ludovicianus). It encompassed the carotid arteries, jugular veins, and thymus, and compressed the esophagus and trachea. Localized compression caused dysphagia, weight loss, and dyspnea, which eventually resulted in death. Most reports on prairie dogs involve their use in research on gallbladder contractility and its role in formation of cholesterol gallstones. There are few reports on naturally developing diseases in prairie dogs, and reports of neoplasia consist of only hepatocellular carcinoma and epiglottal fibrosarcoma. Intrathoracic lipomas have been reported as rare tumors in human beings, dogs, and rats. We describe here an intrathoracic lipoma in a prairie dog and information about this type of tumor in other species.

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Document Type: Research Article

Publication date: January 1, 1998

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  • The Journal of the American Association for Laboratory Animal Science (JAALAS) serves as an official communication vehicle for the American Association for Laboratory Animal Science (AALAS). The journal includes a section of refereed articles and a section of AALAS association news. The mission of the refereed section of the journal is to disseminate high-quality, peer-reviewed information on animal biology, technology, facility operations, management, and compliance as relevant to the AALAS membership. JAALAS accepts research reports (data-based) or scholarly reports (literature-based), with the caveat that all articles, including solicited manuscripts, must include appropriate references and must undergo peer review.

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