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1 April 2016 Pulmonary Mast Cell Tumor and Possible Paraganglioma in a Free-ranging Pacific Walrus ( Odobenus rosmarus divergens), Barrow, Alaska, USA
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Abstract

We describe a pulmonary mast cell tumor in a subsistence-harvested free-ranging Pacific walrus (Odobenus rosmarus divergens). Neoplastic cells effacing a focal area of pulmonary parenchyma were characterized by rare metachromatic granules and positive staining for C-kit. We also report co-occurrence of a peribronchial mass with a morphologic and immunohistochemical profile compatible with paraganglioma.

Mauricio Seguel, Raphaela Stimmelmayr, Elizabeth Howerth, and Nicole Gottdenker "Pulmonary Mast Cell Tumor and Possible Paraganglioma in a Free-ranging Pacific Walrus ( Odobenus rosmarus divergens), Barrow, Alaska, USA," Journal of Wildlife Diseases 52(2), 407-410, (1 April 2016). https://doi.org/10.7589/2015-07-182
Received: 13 July 2015; Accepted: 1 September 2015; Published: 1 April 2016
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