Proteinaceous plug and urethral ectasia in Artibeus lituratus (Chiroptera: Phyllostomidae)

Autores

  • Maria Alice Amaral Kuzel Fiocruz Campus Atlantic Forest, Oswaldo Cruz Foundation, Rio de Janeiro. Brasil
  • Isabel Cristina Fábregas Bonna Fiocruz Campus Atlantic Forest, Oswaldo Cruz Foundation, Rio de Janeiro. Brasil
  • Jonatas Amorim Tavares Graduate Program in Biodiversity and Health, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro. Brasil
  • Caroline Lacorte Graduate Program in Tropical Medicine, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro. Brasil
  • Mylena de Souza Borges Fiocruz Campus Atlantic Forest, Oswaldo Cruz Foundation, Rio de Janeiro. Brasil
  • Ricardo Moratelli Fiocruz Campus Atlantic Forest, Oswaldo Cruz Foundation, Rio de Janeiro. Brasil
  • Taynara Moura Coordination of Research and Animal Experimentation, Institute of Science and Technology in Biomodels, Oswaldo Cruz Foundation, Rio de Janeiro. Brasil
  • Claúdia Lopes Non-Human Primate Breeding Service, Institute of Science and Technology of Biomodels, Oswaldo Cruz Foundation, Rio de Janeiro. Brasil
  • Kelly Demarque Cell Biology Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro. Brasil

DOI:

https://doi.org/10.37002/biobrasil.v13i2.2342

Palavras-chave:

Proteinaceous plug, Artibeus lituratus, urethral ectasia

Resumo

Artibeus lituratus (great fruit-eating bat; Phyllostomidae, Stenodermatinae) is a bat predominantly frugivorous species, with an important role in seed dispersal. The scarce literature on the morphology and pathology of bats is a challenge for professionals who study the species. This report presents the case of a free-living adult male of A. lituratus, captured during ecology and health studies in an Atlantic Forest remnant in the city of Rio de Janeiro, Brazil. The macroscopic examination of the structures showed a prostate, with about 0.5 cm in diameter, attached to the base of the urinary bladder, embracing part of the initial portion of the urethra and being composed of two well-defined regions: dorsal region and ventral region (involving the ventral part of the urethra) with the presence of homogeneous and whitish parenchyma. The urinary bladder was quite rigid and very thick with a lot of a whitish, friable and caseous material inside. On microscopic examination, this material was strongly eosinophilic and densely marked by PAS staining with the presence of sperm. The histology of prostatic region was preserved; however, the marked ectasia of the prostatic urethra was observed, with a large amount of refluxed material in its interior and flattening of the lining epithelium in part of the sample. This is the first report of this pathological process in A. lituratus and important to draw attention of veterinarians and other professionals about the presence of this pathology in bats.

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Publicado

2023-08-16