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Open Access Adenocarcinoma of the Dorsal Glands in 2 European Ground Squirrels (Spermophilus citellus)

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Olfactory communication is an important aspect of the biology of ground squirrels; accordingly, some of their integumentary glands are associated with scent-marking behavior. Although reports of neoplasms in ground squirrels are limited, the literature on tumors in this family of rodents is extensive, with hepatocellular carcinomas in woodchucks and fibromas in squirrels being the 2 most common neoplasms. Apocrine gland tumors occur frequently in domestic animals such as cats and dogs but to our knowledge have not previously been reported in squirrels. Here we describe 2 cases of adenocarcinoma of the dorsal glands in privately owned European ground squirrels (Spermophilus citellus). The skin nodules were characterized histologically by proliferation of epithelial cells, which were arranged in a tubuloacinar pattern with neoplastic emboli within the blood vessels. Adenocarcinoma of the dorsal glands was diagnosed in light of the anatomic localization, immunohistochemistry results, and histochemistry findings.

Document Type: Case Report

Affiliations: 1: Department of Histopathology, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy 2: Department of Histopathology, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Italy.

Publication date: 2012-08-01

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  • 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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