The presence of ovarian cysts in a captive Antillean manatee (Trichechus manatus manatus L. 1758)

BMC Veterinary Research

Case Report

Joanna Klećkowska-Nawrot¹  Karolina Goździewska-Harłajczuk¹  Stanisław Dzimira² 

[1] Department of Animal Physiology and Biostructure, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Kozuchowska 1/3, 51-631, Wroclaw, Poland;Department of Pathology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, C.K. Norwida 31, 50-375, Wroclaw, Poland;

关键词: Case history;    Ovarian cysts;    Antillean manatee;    Trichechus manatus manatus;   

DOI  :  10.1186/s12917-017-1164-7

 received in 2016-07-21, accepted in 2017-08-09,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundSeveral pathological changes associated with reproductive systems of marine mammals have been reported in primary literature. However, no such records exist regarding ovarian cysts in the Antillean manatee (Trichechus manatus manatus L. 1758).Case presentationA nulliparous female Antillean manatee, held in captivity at the Wroclaw Zoological Garden, died in April 2015. The animal was 370 cm long from nose to tail and weighed 670 kg. The width of manatee’s fluke was 80 cm. The post-mortem examination of the reproductive system showed the numerous pathological cysts on the external surface of the left and the right ovaries. Morphologically, the cysts had varying diameters and were attached to the ovaries by stalks. Some of the cysts were thin-walled and contained fluid, while several others were solid or contained a semi-solid mass. The structure of the ovaries displayed features of the polycystic ovary syndrome (PCOS). The cysts also exhibited positivity with cytokeratin and vimentin. There were no pathological changes within the uterus, uterine tube and vagina.ConclusionAlthough we were unable to definitively determine the exact source of the ovarian cysts in the studied manatee, we found that one of the causes may be age-related. Our study also revealed that ovarian cysts in the Antillean manatee form both types of corpora lutea (CL).

【 授权许可】

CC BY   
© The Author(s). 2017