Also known as: Parasite from cat feces
The senator presents with nausea, headache, and mental confusion. A brain biopsy reveals toxoplasmosis causing a brain lesion, initially leading the team to suspect AIDS as the underlying cause of his severely weakened immune system.
Also known as: CVID
The senator's true diagnosis - an immunodeficiency disorder triggered by the combination of childhood epilepsy medication (phenytoin) and Epstein-Barr virus exposure. This causes severely depressed T and B cells, leaving him vulnerable to opportunistic infections. Diagnosed after considering his childhood medical history.
Also known as: PCP
A fungal pneumonia that develops as a complication of the senator's immunodeficiency, causing severe respiratory distress with O2 saturation at 89% and preventing the team from performing a spleen biopsy.
Also known as: Seizure disorder
The senator had childhood epilepsy at age six, treated with phenytoin until age 10. This historical diagnosis becomes crucial as House discovers the medication combined with Epstein-Barr virus exposure triggered his current immunodeficiency. The senator had been lying about the origin of his tongue scar to create a better political narrative.
Also known as: Sleep sex
A clinic patient presents with spotting and a miscarriage she cannot explain, as well as hickeys and carpet burn. Sleep lab monitoring reveals she has sexsomnia - sleepwalking into her ex-boyfriend's apartment downstairs and having sex while asleep, explaining her mysterious pregnancy and exhaustion.