chocolate cyst

Noun

chocolate cyst (plural chocolate cysts)

1. An ovarian cyst containing old brown blood, usually, but not always, associated with endometriosis.
   • In situ examination of ovaries with a chocolate cyst has shown that the endometrioma is not an intraovarian cyst of deeply infiltrating endometriosis but an extraovarian pseudocyst consisting of invaginated ovarian cortex fused and sealed off by adhesions and colonized by superficial endometriotic...1997, Gere S. DiZerega, Alan H. DeCherney, Michael P. Diamond, Pelvic Surgery: Adhesion Formation and Prevention, →ISBN
   • The best known manifestation of endometriosis in the ovary is the 'chocolate cyst' (Figure 20.13).2009, Stanley J. Robboy, Robboy's Pathology of the Female Reproductive Tract, →ISBN, page 528