Soft tissue sarcomas in 2 zoo-housed Alaskan moose

Soft tissue sarcomas (STSs) are common well-described cutaneous neoplasms in many domestic species. Few cutaneous neoplasms have been reported in cervids, other than papilloma virus–induced benign cutaneous fibromas (BCFs). Two wild-caught Alaskan moose (Alces alces), housed at different North Ameri...

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Bibliographic Details
Published in:Journal of Veterinary Diagnostic Investigation
Main Authors: Walker, Bridget, Eustace, Ronan, Junge, Randall E., Hsu, Tu Chun, Watson, Victoria
Format: Text
Language:English
Published: SAGE Publications 2022
Subjects:
Brief Reports
Alces alces
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9266517/
http://www.ncbi.nlm.nih.gov/pubmed/35673776
https://doi.org/10.1177/10406387221101853
Description
Summary:Soft tissue sarcomas (STSs) are common well-described cutaneous neoplasms in many domestic species. Few cutaneous neoplasms have been reported in cervids, other than papilloma virus–induced benign cutaneous fibromas (BCFs). Two wild-caught Alaskan moose (Alces alces), housed at different North American zoos, were both presented with lameness and a mass. The gross appearance of each mass varied greatly; case 1 had a distinct, exophytic, ulcerated mass near the right carpal joint similar in appearance to a BCF, and case 2 had a pronounced swelling over the left hip. Based on histologic evaluation, both masses were diagnosed as STS. The clinical presentation of these masses included rapid growth and associated lameness; however, gross appearance was markedly different. Histopathology revealed characteristics typical of STS in other species, including spindle-shaped cells arranged in streaming sheets with ovoid nuclei. STS should be included as a differential diagnosis for moose with a cutaneous or subcutaneous soft tissue mass or swelling.

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