Bilateral ovarian cysts originating from rete ovarii in an African green monkey (Cercopithecus aethiops).
Ovarian cyst is common incidental finding in humans and many animals and includes follicular cysts, cystic rete ovarii and mesonephric duct cysts. Ovarian cyst is often associated with reproductive disorders in humans and animals. We found accidentally bilateral cystic masses in ovaries in an African green monkey. Grossly, the left and right ovarian cystic masses were single unilocular cystic structures measuring 0.6 and 1.8 cm in diameter, respectively. Histologically, both cysts were thin-walled structures that arose from the center of the ovary and displaced ovarian tissue peripherally. The cysts were lined by a single layer of nonciliated low cuboidal epithelium. Immunohistochemically, epithelial cells in the cysts were positive for cytokeratin, and the stromal cells were positive for smooth muscle actin but negative for vimentin. These results suggest that these ovarian cysts in an African green monkey are cystic rete ovarii. To our knowledge, this is the first report of cystic rete ovarii in African green monkeys and may be of value in relation to research of the pathogenesis and treatment of ovarian cyst.
The National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Cheongwon, Chungbuk 363-883, Republic of Korea.
Sung-Woo
SW
Kim
Yong-Hoon
YH
Lee
Sang-Rae
SR
Lee
Kyoung-Min
KM
Kim
Young-Jeon
YJ
Lee
Kang-Jin
KJ
Jung
Kwon-Sik
KS
Chang
Doo
D
Kim
Hwa-Young
HY
Son
Dong-Suck
DS
Reu
Kyu-Tae
KT
Chang
D000199:Actins; D000818:Animals; D000830:Animals, Laboratory; D002522:Chlorocebus aethiops; D005260:Female; D007150:Immunohistochemistry / Q000662:veterinary; D007633:Keratins; D007723:Korea; D008992:Monkey Diseases / Q000473:pathology*; D010048:Ovarian Cysts / Q000473:pathology / Q000662:veterinary*; D017154:Stromal Cells / Q000378:metabolism; D014928:Wolffian Ducts / Q000166:cytology
D000199:Actins; D007633:Keratins