Also known as: Leprosy
The primary diagnosis of the episode. A women's rights activist assistant presents with hallucinations, anemia, bradycardia, and rectal bleeding. The team discovers an ectopic pregnancy and later determines she has diffuse lepromatous leprosy caught during overseas travel, which triggered erythema nodosum leprosum during pregnancy, explaining all her symptoms including nerve damage to her heart and malabsorption issues.
Also known as: Tubal pregnancy
A rare abdominal ectopic pregnancy where the fetus implanted in the patient's intestine rather than uterus or fallopian tube, causing rectal bleeding and bradycardia from vagus nerve compression. This was a complication of her underlying leprosy which had scarred her fallopian tubes.
Also known as: ENL
A severe inflammatory complication of leprosy that was triggered by the physical stress of pregnancy, causing nerve inflammation to her heart, vitamin absorption issues, and scarring of her reproductive organs.
Also known as: Huntington's disease
Thirteen reveals to the patient that she has tested positive for Huntington disease, a progressive neurodegenerative condition that will eventually affect her motor, cognitive, and emotional functioning. This revelation drives character development and subplot tension throughout the episode as House tries to deflect attention from Wilson's issues onto hers.