The Journal of Obstetrics & Gynecology Research: An ovarian endometrioma is a cystic mass arising from ectopic endometrial tissue within the ovary. It contains thick, brown, tar-like fluid, which may be referred to as a "chocolate cyst." Endometriomas are often densely adherent to surrounding structures, such as the peritoneum, fallopian...

Global Journal of Reproductive Medicine: Endometriosis is a common disease in up to 10% of women of reproductive age. It often causes symptoms such as dysmenorrhea, chronic pelvic pain, dyspareunia and dyschezia. It is also associated with ovarian endometrioma which requires surgery for both diagnosis and treatment. However, recurrence r...