First report of ovarian epidermoid cyst in a teleost

Silveira, Estevan Luiz da; Viott, Aline de Marco; Santos, Renato L.; Macêdo, A A; Aranha, José Marcelo Rocha; Menezes, Márcia Santos de

doi:10.1111/jfd.12355

Cited by 1 publication

(1 citation statement)

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“…As an example in cattle, polycystic ovary syndrome is associated with selection for high milk production (ROSENBERG, 2010). Silveira et al (2016) reported the case of ovarian cyst in Astyanax paranae, differing by this report as being of epidermoid origin, the authors suggested the development from a cystic dilation and subsequent metaplasia. As the same our report, Abowei et al (2011) observed anorexia with metaplasia in Clarias gariepinus female from Lake Victoria and the necropsy revealed the ovary comprised of several large (up to 4 cm diameter) cysts full of serous liquid.…”

Section: Discussionmentioning

confidence: 63%

POLYCYSTIC OVARY SYNDROME IN NILE TILAPIA, Oreochromis niloticus

Bertipaglia

Silva

Lopes

et al. 2018

Ars Vet

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This study presented a case report of a female of Oreochromis niloticus in the reproductive age. In the clinical analysis, the animal showed intense abdominal distension, severe cachexia, retraction of the eyeball and lethargic behavior. At the necropsy, it was observed the presence of neoplastic mass in the peritoneal cavity which presented smooth surface, circular appearance, soft consistency and reddish-blackened focal regions. There was the formation of multiple cysts, which presented a yellowish-green liquid content in the cut. In the histopathological examination, multiple dilatations were observed, filled with amorphous eosinophilic material with a delicate fibrocolagenous wall, as well as detachment of the granulosa and theca cells. The presence of macrophage infiltrates with hemosiderin pigments was also observed. The macroscopic and microscopic findings confirm the diagnosis of polycystic ovarian syndrome; however the causes of this cystic disease were not understood. KEY-WORDS:Cichlids. Ovarian cyst. Fish reproduction. Histopathology. RESUMOEste estudo apresentou um relato de caso de uma fêmea de Oreochromis niloticus na idade reprodutiva. Na análise clínica, o animal apresentava intensa distensão abdominal, caquexia severa, retração do globo ocular e comportamento letárgico. Na necropsia, observou-se a presença de massa neoplásica na cavidade peritoneal, apresentando superfície lisa, aspecto circular, consistência mole e regiões focais escurecidas de vermelho. Existia a formação de múltiplos cistos, que ao corte apresentavam um conteúdo líquido verde-amarelado. No exame histopatológico, foram observadas dilatações múltiplas, preenchidas com material eosinofílico amorfo com delicada parede fibrocolagenosa, além de descolamento das células da granulosa e da teca. A presença de infiltrados de macrófagos com pigmentos de hemossiderina também foi observada. Os achados macroscópicos e microscópicos confirmam o diagnóstico de síndrome do ovário policístico; no entanto, as causas desta doença cística não foram compreendidas. PALAVRAS-CHAVE:Ciclídeos. Cisto ovariano. Oreochromis niloticus. Reprodução em peixe.

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Section: Discussionmentioning

confidence: 63%