Abby slides into the MRI (OF DOOOM!!) as Taub strolls into the booth and apologizes to Chase for being late. He then gets on the PA to pass Nick's message along to Abby, which was nice of him. Maybe now she won't sue him for violating her patient confidentiality rights. Taub tells Chase about his fight with Mrs. Taub and begins to ask Chase for advice, only for Chase to interrupt him and remind him that Chase is probably not the best person to seek marriage advice from, what with his ten-minute-long marriage and all. Chase then notices a spot on Abby's mitral valve. Mitral valves are getting a lot of play on House lately! It must be Mitral Valve Appreciation Month. For no good reason, we zoom in on the mitral valve spot on the monitor, which transitions into an image of some wormhole-looking space thing before we zoom back out into the heart image on the wall of the lightbox room, where House and the rest of the Cottages examine the film. Hadley guesses the spot is a fungus, but Foreman nixes that, saying the blood cultures showed no evidence of parasites or fungus. Oh, you mean those blood cultures that they never, ever do on this show because it takes too long to get results back from them? House finds a way to turn the conversation to Taub and his wife. Taub insists that he was late because of a flat tire, but House can tell from the expression on Chase's face that Taub is lying. As usual, Foreman turns the discussion back to the patient, and Hadley says they should do an echocardiogram to get more information on the mitral valve spot. Taub balks at this, since it could trigger a heart attack, but House can't think of anything better to do and orders it.