S8E10: Runaways

This is a preserved copy of "Runaways", originally published at politedissent.com. Wayback capture: 2013-03-26. Original URL: http://politedissent.com/archives/8596.

House shows some heart in tonight’s episode, unfortunately, he seems to have left his brain at home.

⚠️ Spoiler warning — plot details for this episode follow.

A teenager presents to the Princeton-Plainsboro Hospital clinic complaining of some difficulty breathing. All she wants is an inhaler for her “asthma” but House correctly recognizes that she is homeless and the man with her isn’t really her father. What really piques his interest is when she starts bleeding from her ear. He mentions that this is a sign of a skull fracture, but can find no fracture — or any other cause of the bleeding — so he admits her to his service. The team’s initial diagnoses focus on her homelessness and consist of drug use, malnutrition, or HIV. Chase goes further and suggests she may have a squamous cell cancer of the middle ear with paraneoplastic syndrome, while Taub, backed by Adams, suggests a possible cerebral (brain) infection, probably pneumococcus. House agrees with Taub and Adams and starts “Jane Doe” on ceftriaxone (a potent antibiotic).

Adams and Park check out Doe’s school — where she is doing quite well — and also check out her address on record with the school, which is a foreclosed home she has fixed up. Looking around the house, Adams finds a few beers and some mold. She now suspects Doe has a fungal infection and starts her on fluconazole (an antifungal medication). Upset that the team went behind her back digging into her history, Doe tries to leave, but collapses as soon as she gets out of bed, complaining that she “can’t feel her legs” (her symptoms are later identified as paralysis, which is different from the paresthesia she was complaining of).

Looking over her symptoms of ear bleeding, problems breathing, and lower extremity paralysis, the team’s new differential diagnosis is transverse myelitis, endocarditis with septic emboli, or the fairly vague “vasculitis” (inflammation of the blood vessels). House goes with the vague and starts the patient on steroids to treat the presumed vasculitis. Initially, she is doing better on the steroids, but then things quickly go to hell. Her estranged mother shows up, identifying the patient as Callie, and in the middle of the confrontation, Callie begins coughing up blood. Different diagnoses are considered based on where the blood may be coming from (respiratory or gastrointestinal source). Chase suggests she has a sinusitis and a bleeding disorder, and Adams suggests Zollinger-Ellison syndrome (a condition where the patient has a tumor which secretes gastrin, which causes the stomach to pump out too much acid). House thinks Adams has the better idea and orders an EGD (upper endoscopy), which reveals bleeding ulcers in the esophagus; unfortunately, this doesn’t fit any of the diagnoses discussed. The team now considers the diagnoses of HPV (human papilloma virus), alcohol-induced esophagitis, or a berry aneurysm of the brain. House thinks it is the aneurysm and wants a quick cerebral angiogram followed by surgery before the aneurysm has a chance to rupture, which would rapidly kill her. Adams favors the alcohol theory — Callie does admit drinking an occasional beer — and Callie’s mother agrees with Adams and decides to forgo the angiogram and surgery. Callie seems to be doing well and is actually talking with her mother when she suddenly falls unconscious. Coudl she have had a berry aneurysm which burst? Was House right? She is rushed to the OR suite for the cerebral angiogram, but no aneurysm is detected. Her blood pressure begins to plummet and the team buys time with some pressors (medications that increase blood pressure), but still don’t know what is wrong her. Brainstorming, Adams first suggests cancer, then recalls hearing about a trip Callie took to Florida two years before and wonders is she may have contracted dengue or cholera. House (rightfully) scoffs at those, then after learning Callie went swimming in a freshwater canal while in Florida, correctly diagnoses her with ascariasis (a parasitic worm infection). After Callie is treated, she sneaks out of the hospital to be on her own again, still unwilling to trust her mother. (I’m assuming she snuck off to the Disney Channel, where she was able to find a much happier family).

As usual, major complaints are in red (red caduceus), modest complaints are in blue (blue Vicodin), and nit-picking ones in green (green pencils):

House dismisses Adams suggestions of dengue and cholera by pointing out the two year gap between exposure and symptoms, but then diagnoses ascariasis, which has precisely the same problem. The worms would not have sat quiescent for two years, not when they had their preferred environment, no matter what the fancy graphics at the end showed.
I’ll grant that ascariasis can cause pulmonary symptoms and gastrointestinal symptoms (because the worms travel intestines to liver to liver blood flow to lungs, then up the trachea, and swallowed back down to the intestines). Ears (and even if they could get to the ears, how were they causing bleeding? Drilling a hole?)? Brain (and yet not be visible on CT scan)?

Ears should not bleed. House looked in Callie’s ear and said it was normal. I would expect him to see a bleeding source (such as a scratch, cyst, infection, etc) in the canal, or a hole in the tympanic membrane which would let blood from deeper in the ear out into the canal. He mentioned neither of these – so how could there be blood?
Other than Chase’s mention of squamous cell cancer of the ear, none of the diagnoses mentioned are going to cause ear bleeding, particularly ear bleeding that looks normal on exam. For example, Zollinger-Ellison? How is a gastrin-secreting tumor going to cause ear bleeding? Callie only has four symptoms, and Adams still skips one in her diagnosis

Taub’s phrasing “cerebral infection” was a odd. He seems to be suggesting meningitis — for which pneumoccocus is a common cause and ceftriaxone a good choice of medication — but that doesn’t fit with Adams comment about lack of fever. You would expect a fever — and meningeal signs — with meningitis. They could possibly be referring to a brain abscess, but that would have shown up on the CT, and pneumococcus (and thus the choice of ceftriaxone) much less common.

No vaccine is 100% protective, and Callie could still get pneumococcus even after being immunized. Plus, the vaccine only covers a handful of different pneumococcus serotypes (admittedly the most common), and she could have been infected with one of the serotypes not covered by the vaccine.
Why would Adams, who doesn’t believe much of what Callie says, believe a shot record to be true? Callie likely forged or lied on her school shot records. It’s not like her parents really signed it.

When Callie stands up and collapses to the floor, she complains she can’t feel her legs (paresthesia). That’s different that an inability to move her legs (paralysis). It’s possible she has both and can’t move or feel her legs, but then the most common complaint would be that she couldn’t move her legs, not that she couldn’t feel them.

PPH is in for some tough times. In the past two weeks, they’ve let two patients escape– two they should have been watching closely. Last week, a patient with Alzheimer’s (known to be elopement risks), and this week, a minor left AMA, a minor with a history of running away.

I found the medical mystery to be more interesting than usual this week, because the symptoms were quite disparate. I give it B. The final solution was a let down, because it couldn’t really explain half the symptoms (and the most interesting half at that); it deserves no more than a D. The medicine was very sloppy this week, with many of the diagnoses not explaining all the symptoms — and there were only three or four symptoms to work with. I give it a C-. The soap opera was adequate and average. There were a couple of nice scenes, and Wilson got a few good lines, but it really wasn’t anything above average: C.