Cutaneous papillomas of green turtles: a morphological, ultra-structural and immunohistochemical study in Brazilian specimens

Authors

  • Eliana Reiko Matushima Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Patologia, São Paulo, SP
  • Ademar Longatto Filho Instituto Adolfo Lutz, Divisão de Patologia, São Paulo, SP
  • Celso Di Loretto Instituto Adolfo Lutz, Divisão de Patologia, São Paulo, SP
  • Cristina Takami Kanamura Instituto Adolfo Lutz, Divisão de Patologia, São Paulo, SP
  • Idércio Luiz Sinhorini Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Patologia, São Paulo, SP
  • Berenice Gallo IBAMA
  • Cecília Baptistolle IBAMA

DOI:

https://doi.org/10.1590/S1413-95962001000200001

Keywords:

Green turtles, Fibropapillomas, Papillomatosis

Abstract

Eleven juvenile green turtles (Chelonia mydas) from Atlantic Ocean, Brazil, with multiple cutaneous papillomatosis were examined. Histologically, the papillomas exhibit stromal hyperplasia proliferation and epithelial proliferation. The epithelial cells had nuclear changes suggestive of viral infection and severe nuclear pleomorphism. A large nuclear halo was present in the cases of epithelial proliferation; in these cells, nuclear features were frequently dyscariotic, without inclusion. All fibropapillomas examined were negative for papillomavirus group-specific antigens (BPV) and herpesvirus group-specific antigens (HSV1 / HSV2) by the peroxidase-antiperoxidase technique. Electronic microscopy investigation was negative for papillomaviruses and herpes-viruses particles.

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Published

2001-01-01

Issue

Vol. 38 No. 2 (2001)

Section

BASIC SCIENCES

License

The journal content is authorized under the Creative Commons  BY-NC-SA  license (summary of the license: https://creativecommons.org/licenses/by-nc-sa/4.0 | full text of the license: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode) 

How to Cite

1.
Matushima ER, Longatto Filho A, Di Loretto C, Kanamura CT, Sinhorini IL, Gallo B, et al. Cutaneous papillomas of green turtles: a morphological, ultra-structural and immunohistochemical study in Brazilian specimens. Braz. J. Vet. Res. Anim. Sci. [Internet]. 2001 Jan. 1 [cited 2024 Nov. 12];38(2):51-4. Available from: https://revistas.usp.br/bjvras/article/view/5901