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

Author(s):Show less -

Reisfeld, Laura ; Fernandes, Natalia C. C. A. ; Sarmiento, Angelica ; Canedo, Paloma ; Salvagni, Fernanda ; Ewbank, Ana Carolina ; Barrese, Tomas Zecchini ; Ponce, Cesar Cilento ; Ressio, Rodrigo Albergaria ; Catao-Dias, Jose Luiz ; Sacristan, Carlos

• Document type: Journal article
• Source: DISEASES OF AQUATIC ORGANISMS; v. 148, p. 6-pg., 2022-01-01.

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. (AU)

• FAPESP's process: 18/25069-7 - Study and characterization of selected emerging viral agents and potentially associated with hepatopathies in coastal, pelagic and mixed habitat cetaceans in Brazil
• Grantee: Carlos Sacristan Yague
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 16/20956-0 - Identification and quantification of antimicrobial resistance genes in the microbiome of seabirds from the Southern-Southeastern coast of Brazil
• Grantee: Ana Carolina Ewbank
• Support Opportunities: Scholarships in Brazil - Doctorate