Also known as: Congenital colon nerve disorder
Initially suspected as the cause of Jack's constipation and abdominal pain. A barium enema and biopsy were ordered, but this diagnosis was later ruled out as seizures and other symptoms developed.
Also known as: Increased pressure in the skull
Jack develops dangerously elevated intracranial pressure causing seizures and requiring emergency burr holes to be drilled to prevent brain herniation. Multiple shunts are placed to drain subdural fluid.
Also known as: Brain cancer
Suspected based on the pattern of fluid collection and abnormal dural findings. A dural biopsy was performed but came back negative, ruling out this diagnosis.
Also known as: Stomach cancer
Considered as an explanation for pain, constipation, and nutritional deficiencies. Endoscopic examination and biopsies of the stomach and esophagus were performed but showed no masses.
Theorized that seizures manifesting as abdominal pain preceded the motor seizures. Jack was started on gabapentin and continuous EEG monitoring, but this was ruled out.
Also known as: PAN
Considered when a rash appeared along with fever and elevated diastolic pressure. A testicular biopsy was planned to look for inflammation, but this diagnosis was abandoned.
Also known as: Malignant atrophic papulosis
Initially diagnosed as the cause of Jack's symptoms based on atrophic papules on the penis and vascular changes. The team delivers the devastating news that it's incurable and fatal within a day.
Also known as: Antiphospholipid antibody syndrome
The correct final diagnosis reached after Jack suffers cardiac arrest. House realizes the large vessel involvement rules out Degos. Treatment with heparin and IV immunoglobulin is successful and saves Jack's life.
Also known as: Abdominal fluid buildup
Jack continuously accumulates peritoneal fluid requiring shunts to drain it, a symptom that contributes to the diagnostic mystery throughout the episode.