endometrial cyst

This blood-filled growth is called an ovarian endometrioma, or an endometrial cyst.

The cysts can release blood; the endometrial cyst "menstruates" in the lung.

An endometrioma, endometrioid cyst, endometrial cyst, or chocolate cyst of ovary is a condition related to endometriosis.

With an associate who is not a member of the group assisting and with Mrs. Anton's four-month fetus lying undisturbed inches from where they probed in her abdomen, Spierling worked to free and remove a large endometrial cyst that had completely occupied her right ovary.