Also known as: Endometrial tissue growing outside the uterus
Former cancer researcher Dana Miller presents with spontaneous pneumothorax, then develops bleeding liver, widespread vascular masses, and cardiac tamponade. The team eventually discovers that endometrial cells from her prior myoma surgery spread throughout her body via bloodstream, causing masses that swell and bleed with her menstrual cycle.
Also known as: Collapsed lung
Initial presenting symptom for Dana Miller, with cyanosis and chest/back pain. Treated with chest tube insertion but O2 sats remain low. Eventually determined to be secondary to ectopic endometriosis.
Also known as: Brain cancer
Thirteen develops a tumor in her optic chiasm as a complication from the experimental Huntington's drug that Foreman secretly gave her. She experiences progressive symptoms including headaches, loss of peripheral vision, and complete blindness before radiation treatment.
Also known as: Uterine fibroid
Dana had a benign uterine myoma that ruptured eight months prior requiring emergency surgery. This surgery inadvertently spread endometrial cells throughout her body, leading to her current widespread ectopic endometriosis.
Also known as: Blood around the heart
Dana develops bleeding into her pericardium from ectopic endometrial tissue, causing her heart to stop. Treated emergently with pericardiocentesis to remove blood and relieve pressure on the heart.