Lymphomas in seabirds: case reports in a black skimmer (Rynchops niger) and a brown booby (Sula leucogaster)

Isabella C R Boaventura; Vanessa L Ribeiro; Alex J S de Souza; Ruy D Chacón; Antônio J P Ferreira; Victor H B Marutani; Juliana P Guimarães; Lilian R M Sá

doi:10.1016/j.jcpa.2024.03.206

Lymphomas in seabirds: case reports in a black skimmer (Rynchops niger) and a brown booby (Sula leucogaster)

J Comp Pathol. 2024 Apr 20:211:12-16. doi: 10.1016/j.jcpa.2024.03.206. Online ahead of print.

Authors

Isabella C R Boaventura¹, Vanessa L Ribeiro², Alex J S de Souza³, Ruy D Chacón³, Antônio J P Ferreira³, Victor H B Marutani⁴, Juliana P Guimarães², Lilian R M Sá⁵

Affiliations

¹ Instituto Biopesca, R. Carlos Eduardo Conte de Castro, 93 - Canto do Forte, Praia Grande, São Paulo, 11700-430, Brazil; Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, São Paulo, 05508-270, Brazil.
² Instituto Biopesca, R. Carlos Eduardo Conte de Castro, 93 - Canto do Forte, Praia Grande, São Paulo, 11700-430, Brazil.
³ Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, São Paulo, 05508-270, Brazil.
⁴ State University of Londrina, Rodovia Celso Garcia Cid, PR-445, Km 380, Paraná, 86057-970, Brazil.
⁵ Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87, São Paulo, 05508-270, Brazil. Electronic address: liliansa@usp.br.

PMID: 38643606
DOI: 10.1016/j.jcpa.2024.03.206

Abstract

A black skimmer (Rynchops niger) and a brown booby (Sula leucogaster) were rescued and gross, histopathological, immunohistochemical and polymerase chain reaction evaluations were conducted to investigate the cause of death. There were neoplastic infiltrations of CD3+ PAX5- lymphocytes in the black skimmer and CD3- PAX5+ lymphocytes in the brown booby. Molecular assays for viral agents were negative in both cases. This is the first report of disseminated lymphoma as the cause of stranding and death in these species in Brazil.

Keywords: Charadriiformes; Marek's disease; Suliformes; avian leukosis; immunohistochemistry; neoplasm; reticuloendotheliosis virus.