Endometrioma of the rectosigmoid.
D012809:Colon, Sigmoid; D004715:Endometriosis; D005260:Female; D006801:Humans; D010051:Ovarian Neoplasms; D012004:Rectal Neoplasms; D012007:Rectum; D012811:Sigmoid Neoplasms
ENDOMETRIOSIS; RECTUM/neoplasms; SIGMOID/neoplasms