Back at PPTH, Foreman thanks the police for bringing House back. House claims he thought the ankle bracelet was merely decorative. Foreman thinks House should have cleared his trip with him first, what with him being in charge and all. Plus, House isn't allowed to go anywhere but PPTH and his home. House isn't too into that idea. He would like House to solve this case without making Foreman look like he can't control him. Well, he probably can't. Also, House is a big jerk, so he's obviously going to go out of his way to annoy Foreman.
Charlyne and House are in the morgue to look at a body. She wants to roll the body out to the MRI, but House just cuts right into the arm to get a tumor. She admits that she's already had an interview with Chicago, so she has someplace to go instead of dealing with the aftermath of punching her attending. House thinks this tumor is a particular kind of thing that starts with "radish" or something. House continues to give helpful life advice until she snaps at him. Seriously, would you take life advice from this guy? She only just met him, but he obviously doesn't make great decisions, you know?
Wilson's Patient and Wilson's Patient's Sister have a discussion about a hot dog cart. Wilson comes in and gets his Bedside Manner on. We learn that Bobby, the patient's ex-boyfriend, is a drunk. And the patient's catheter bag is empty, even though she's taken in plenty of fluids. Her kidneys are shutting down, which means that she has to stop getting the nitro, so the chest pains will return.
Wilson busts into his office to see House listening to "My Heart Will Go On" on a laptop. They squabble while occasionally turning the song on and off. Wilson is really good at reaching over the laptop's screen and pushing the "stop playing" button without looking. Charlyne interrupts the squabbling to reports that the lump was congealed plasma from the ER, and the donor didn't have cancer. So maybe the problem was in the plasma itself? It could have as many as 25 donors. House is unbowed. It's time to start investigating! Or "continue investigating," I guess.