This week’s episode of House had a great set-up and a clever medical mystery. The medicine itself was only so-so, but the rest of the episode mostly made up for it.

The episode starts with House getting a lap dance at a strip club. He soon realizes that he has no recollection of how he got there. Seeing blood on his fingers, he has the stripper look at his head and she sees a scalp laceration. From this, he deduces that he has suffered a concussion with retrograde amnesia (unable to remember what happened before the concussion). Leaving the strip club, he comes across the remnants of a tremendous bus crash and realizes that he must have been on the bus and was injured in the crash. He also has a fleeting memory that he saw something important while on the bus. He remembers that he noticed a symptom in one of the other passengers signifying that he or she had a fatal disease. The trouble is, he can’t remember who it was or the symptom that he saw
He stalks around the emergency room, looking over the other patients, and spots some bruising on the bus driver’s shoulder. He declares it a sign of leukemia, but in reality it is only the bruise left from the seatbelt. Another patient complains of a stiff neck and House immediately announces that he has meningitis and no one is to leave the emergency room (he doesn’t really think the patient has meningitis, he’s just trying to keep all the crash victims where he can find them. 22 of the 30 victims are at Princeton Plainsboro, 8 are across town).
Kutner suggests that House undergo “medical hypnosis” to improve his focus and assist with memory retrieval. Chase just happens to be trained in hypnosis, so he puts House under. Remembering the bus ride, House recalls a punk rocker (or “emo Guitar Hero wannabe”) with a cough and a bad nose picking habit. House figures this must be nasal pruritis (an itchy nose), a sign of a tumor — but the exam is normal.
A short time later, the bus driver discovers that he cannot move his legs. The differential diagnosis of this sudden onset of paralysis includes subdural hematoma, stroke, and subarachnoid hemorrhage — but all were ruled out by CT scan. Guillain Barre is suggested, as is tranverse myelitis based on the patient’s increased white count. Foreman starts him on antibiotics for the tranverse myelitis.
House now begins smelling the clothes of the patients who were involved in the bus accident, reasoning that smell is powerful at evoking memories. He hallucinates that he is back on the bus, talking to the driver, but the driver seems more focused on House than himself. Wilson and the team break his hallucination and order him to undergo an MRI to evaluate his brain. Edema and swelling in the temporal lobe are noted, as well as a fracture of the temporal bone.
The bus driver is able to walk again, but now is now suffering from acute abdominal pain. A peptic ulcer is a possible cause, but House wonders if it might be Addison’s Disease (a condition where the adrenal glands do not make enough steroid hormones) caused by a tumor.
House places himself in a sensory deprivation tank to better remember what he saw on the bus. This time, Cuddy is there with him. They conjecture that he saw something in the bus driver that caught his attention, but it could only be something he saw from behind, possibly a bobbing head or wiggling ear lobes. The differential they concoct includes aortic insufficiency (a leaky aoritc valce in the heart), Marfan’s syndrome (an inherited disease of the connective tissues), syphilis, Ehlers Danlos Syndrome (another inherited connective tissue disease), and Cutis Laxa (still another inherited disease of the connective tissues). There are also suggestions of early Huntington’s or Parkinson’s Disease. House decides it is the latter. He comes out of the deprivation tank and immediately vomits and passes out. When he comes to, he is in his apartment with a nurse to look over him and a security guard to keep him from leaving.
The bus driver is not doing well. He has developed liver failure, jaundice, and has a low albumin. The team suggests Wilson’s Disease (a disease of copper metabolism affecting the liver), hepatitis, hepatic fibrosis, and Thyrotoxic Periodic Paralysis. To rule out the latter, they carbohydrate-load the patient and put him on a treadmill. This should induce the paralysis, but since it doesn’t, the team concludes that the patient does not have the condition. He does become acutely short of breath and hypoxic, however. The team believes the patient has suffered a pulmonary embolus (a clot blocking one of the blood vessels of the lungs), but House deduces that the bus driver developed an air embolism from some recent dental work and as this air bubble has moved throughout his body, it has caused all his symptoms. He positions the patient in such a way that the air is trapped in the heart and has Dr. Thirteen remove it with a syringe. The patient immediately improves.
At home that night, House has a dream featuring a striking woman with a red scarf. The dream convinces him that the bus driver was not the patient he remembered. He reenacts the bus ride, with co-workers playing the role of passengers. He also downs a handful of phisostygmine to help him remember. He flashes back to riding on the bus, and realizes that it was Amber who was on the bus with him, and she is the patient in question. She was critically injured in the crash and hauled off to another hospital as “Jane Doe.” (And we’ll have to wait until next week for the conclusion of the story.)

The medicine was more haphazard than usual tonight, and it’s been very haphazard recently. Of course, part of that could be blamed on House’s own haphazard state tonight.
Hypnosis, even “medical hypnosis” simply doesn’t work like that. If it were that miraculous, it would be used by every police department in the country.
Stroke, subarachnoid hemorrhage, and subdural hematoma aren’t going to cause bilateral leg paralysis and shouldn’t have been so high on the list of possible diagnoses.
Tranverse myelitis is not a bacterial infection, and is not treated with antibiotics. It can be caused by certain viral infections or systemic conditions, but is most often caused by an overactive immune system attacking the spinal cord. Steroids are the treatment of choice.
While physostigmine has been used in cases of Alzheimer’s and other dementias, it has shown at best only minimal improvement. Several decades ago it was tested as a memory aid, but with lackluster results. It is also not available commercially in the U.S. as an oral formulation, unless House has access to a researcher’s stash.
For someone with an open fracture of the skull — indicated by House’s bleeding ear — submerging in a tub full of water is a great way to get an infection straight to the brain.
Nasal pruritis can suggest many things. Seasonal allergies would be at the top of my list. A tumor is a possibility, but a very very remote one. If the concern is that high for a tumor, a quick look up the nose is not going to be enough.
The air embolism from a dental procedure would have been tiny — too tiny to cause all the patient’s symptoms. Once an air embolus gets into the blood vessels, it either rises (going to the brain, since it started in the mouth) or is pushed along the circulation until it reaches the heart and then the lungs (where small ones are absorbed; large ones cause a pulmonary embolus). The air embolus wouldn’t travel elsewhere in the body unless the patient had a severe heart defect with a left-to-right right-to-left shunt.

The medical mystery was very good — one of the best ones yet and easily earns an A. The medicine was very haphazrd, but even so, it was better than it has been the last two weeks so deserves a B-. The final solution (bus driver) didn’t really fit the patient (or the anatomy or the scenario), so is knocked back down to a C. The final solution (Amber), will have to wait until next week, but come on — “resin?” House would have figured it out then and there. The soap opera was minimal, but intriguing, especially the hallucinatory and remembered parts. I give it a B.
The previous House review
A list of all prior House reviews
Challenge scores from the past two weeks are in the post immediately beneath this one (or click here). This week’s scores will be posted later.