ABSTRACT
The ovary is a common site of endometriotic cyst or endometrioma. Perhaps, the irregular surface of the ovary allows endometrial tissue to burrow into its substance, predisposing to the development of ovarian endometrioma. Sampson in 19271 first described the term ‘chocolate’ cyst for ovarian endometrioma. Similar to that of endometriotic implants, the left ovary is more commonly affected than the right.2
