Myeloid and histiocytic sarcomas in subantarctic fur seals Arctocephalus tropicalis, Brazil

Author:

Reisfeld L12,Fernandes NCCA23,Sarmiento A2,Canedo P1,Salvagni F4,Ewbank AC2,Zecchini Barrese T3,Cilento Ponce C3,Albergaria Ressio R3,Catão-Dias JL2,Sacristán C2

Affiliation:

1. Aquário de São Paulo, São Paulo, Rua Huet Bacelar 407, 04275-000 SP, Brazil

2. Laboratory of Wildlife Comparative Pathology, Pathology Department, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, 05508-270 SP, Brazil

3. Instituto Adolfo Lutz, Av. Dr Arnaldo 355, 01246-000 SP, Brazil

4. Laboratório Provet, Av. Aratãs, 1009 SP, Brazil

Abstract

Histopathological and immunohistochemical methods were used to diagnose round cell tumors in 2 subantarctic fur seals Arctocephalus tropicalis with marked anemia. Although wild-born, both individuals were placed under human care while juveniles in a Brazilian aquarium. Both pinnipeds were PCR tested for herpesvirus, and 1 was infected with otariid gammaherpesvirus 5 (OtHV-5), previously described in a subantarctic fur seal stranded in Brazil. Although some gammaherpesviruses can cause sarcomas and other neoplasms, it was not possible to definitively associate OtHV-5 with the neoplasm. To our knowledge, these are the first neoplasm records in subantarctic fur seals.

Publisher

Inter-Research Science Center

Subject

Aquatic Science,Ecology, Evolution, Behavior and Systematics

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