The Cottages analyze some fluids under microscopes and discuss Cameron's tattling to Cuddy. Foreman tells her that she did the right thing, and that he would have done it if she hadn't. Yeah, except that you didn't do it; Cameron did, and you knew she would so you let her take the fall. Chase argues on House's behalf, saying that Alex is a millionaire and isn't entitled to any more protection than a crack whore in the Clinic is. I don't get it, but it's not important, since Foreman just calls Chase out for defending House because he's a suck-up. Chase readily admits that this is so. I want to know why we aren't seeing more of those Clinic crack whores.
The MRI results on House's leg are the same as they were two years ago: there's no nerve regeneration to explain House's new leg pain. Wilson suspects that the pain may be psychosomatic (since that's the word of the episode), caused by his dumping Stacy. Odd; I found myself feeling much better when House dumped Stacy and having a lot more fun watching this show. House angrily protests this theory, and rather viciously thwacks Wilson on the leg with his cane to make him shut up. And yet, they're still friends.
Alex's biopsy was negative for any disease of the white brain matter. House asks Cameron if she needs to leave to report this to Cuddy, or if Cuddy's got Cameron mic'ed already so that it won't be necessary. You definitely could fit a mic in Cameron's neckwear. Hell, you could probably get an entire sound system concealed in its folds. Cameron solemnly says that she had to do what she thought was right, and you can't blame her for that. Unless, of course, she's almost telling the media about a patient's blood doping or keeping a woman with cancer in the dark about her condition. Chase and Foreman go over possible gray-matter brain problems while, in a nice, subtle touch, House clutches his giant tennis ball for dear life because his leg hurts. Cameron just wants to know if she's in trouble, which is hilarious. House just says that they can't test for any gray matter conditions. "So I'm not in trouble?" Cameron asks. She really was that girl in school who always sat in the front row and raised her hand higher than anyone else and followed the recess lady around and told on the other kids for taking the big slide steps up two at a time and then they had to go stand against the wall for five minutes, which is an eternity in recess time. House thinks for a minute, and then comes up with another diagnosis that's much more possible to obtain: old standby paraneoplastic syndrome could be causing all of Alex's symptoms, since it apparently can do just about anything it wants to the human body. Now all they have to do to confirm it is find a tumor.