House is very disappointed to see a soaking-wet Foreman walk into the air-conditioned hallway with Jack's tox screen results, as opposed to a soaking-wet Cameron, because wet t-shirt contests always make for a comfortable work environment. Foreman says that the tox screen was negative, and House swaps his old-man cane with a passing guy's cool metal one. New cane back in his right hand, House tosses the sling away and tells Foreman to give Jack another MRI. House will be looking for Cameron.
House finds Cameron in the locker room. She refuses to write him a Vicodin prescription. House accuses her of being afraid to write his prescription and face the same problems Wilson is. Cameron has no problem admitting this. House tries to appeal to Cameron's sympathy by saying that she will cause House pain if she doesn't give him drugs, and that it's wrong for a doctor to cause pain. This earns him a bottle of Midol. Cameron says that it takes the edge off her PMS, so she's sure it'll work for House. OH!!! Cameron is my GIRL sometimes.
Jack is ready for another MRI of DOOOM! He asks Foreman if he's going to die, and worries about what will happen to his brother and sister. Foreman assures Jack that he'll be fine, and starts up the machine. In the booth, Foreman is amazed that Jack is facing a terminal disease and that his first concern is still for his brother and sister. Then he sees a small tumor on the monitor. The next picture shows several more.
Cameron says that Jack must have brain cancer, which compromised his immune system and got him all those diseases. Wow, too bad Shitter put the only cancer doctor at PPTH out of commission. Now Jack is totally screwed! House doesn't have the same respect for Jack's selflessness in the face of death that Foreman does, which leads to Foreman's accusing House of being "pathetic" and a "hypocrite" for only caring about his patients' faults and not about their strengths. Except that House usually only cares about his patients' faults when they lead to a diagnosis. This leads to a discussion about morals and happiness and the dark side of human nature blah blah blah. People yell at House for thinking the worst of people every other episode and this is no different. The only treatment for Jack's brain cancer is radiation, but that will kill off his immune system, so House doesn't want to go there. Instead, he'd rather assume that the spots on the MRI aren't tumors, but pus. Really? There's a big freaking difference between a brain tumor and pus. Those MRIs are absolutely useless. They might as well appoint one of them head of Oncology. House guesses that the antibiotics they've been giving Jack have created a breeding ground for fungus. Foreman says if House is wrong about this, he'll be wasting the little time Jack has left. House says that's okay, since Jack's life of being an eighteen-year-old parent sucks. And if he's right, then Jack can go back to it. It's lose-lose! House tells them to do a brain biopsy and find out if it's cancer or fungus, which you'd think they would do before assuming Jack developed a whole crapload of small brain tumors overnight. With that, House down his last Vicodin.