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1 March 2017 THE MANAGEMENT OF AN ORAL ANAPLASTIC SARCOMA IN A PYGMY HIPPOPOTAMUS (CHOEROPSIS LIBERIENSIS) USING INTRALESIONAL CHEMOTHERAPY
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Abstract

An adult female captive pygmy hippopotamus (Choeropsis liberiensis) was diagnosed with an oral anaplastic sarcoma. The tumor was surgically debulked and intralesional chemotherapy with mitomycin C (0.4 mg/cm3 of tumor) and cisplatin (1 mg/cm3 of tumor) was administered. Chemotherapeutic treatment proved difficult due to the risks of repeated anesthetics and unknown drug efficacies. Marked proliferation of the mass was observed during estrus, and chemotherapy was repeated as an experimental treatment to slow tumor progression in order for the animal to remain in the species breeding program. Tumor proliferation was detected during the first trimester of pregnancy; however, in the lactation period, the mass became quiescent. No adverse reactions to chemotherapeutic drugs were observed and the animal continues to be monitored for tumor progression. This is the first report of an anaplastic sarcoma and of chemotherapy use in a pygmy hippopotamus and it highlights logistical considerations for treating neoplasia in this species.

Copyright 2017 by American Association of Zoo Veterinarians
Lydia H. V. Franklinos, Nicholas Masters, Yedra Feltrer, Ann Pocknell, David M. Bolt, Stephanie Dakin, Karla Berry, and Fieke M. Molenaar "THE MANAGEMENT OF AN ORAL ANAPLASTIC SARCOMA IN A PYGMY HIPPOPOTAMUS (CHOEROPSIS LIBERIENSIS) USING INTRALESIONAL CHEMOTHERAPY," Journal of Zoo and Wildlife Medicine 48(1), 260-264, (1 March 2017). https://doi.org/10.1638/2016-0015.1
Received: 15 March 2016; Published: 1 March 2017
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