Taub: Opthalmological exam's normal. Nothing structurally wrng with the eye.
Kutner: His heart rate's down. Sensory loss is becoming more diffuse, progressive muscle weakness - he's shutting down.
13: It's got to be something systemic, like autoimmune.
Taub: CSF was clear for Guillain-Barre.
13: Cancer?
Taub: Imaging studies have been clear for tumors.
13: Then that leaves infection.
Kutner: He'd be brimming with white blood cells.
House: Or we are at the backstage door of a Duran Duran concert. Hundreds of screaming girls clustered around. What does that mean?
Kutner: That girls like rock bands.
House: The presence of the fans indicates the presence of the band. Different night - same band, same door. Now there's not a girl insight. What does that mean?
13: Sorry, I don't speak hair band.
Kutner: They weren't hair band. They were new romantics. The band already left?
House: Nope, the band's still there, still rocking out. What if the absence of the fans not indicate the absence of the band?
13: When it's 2009. There aren't any Duran Duran fans.
House: They don't make them anymore. If there's no infection, it's because there aren't any fans, no white cells.
Taub: You think his spleen?
House: Why do I bother with these great metaphors if I still have to spell it out? Yes, I think it's his spleen. Go to get a biopsy. I'll try to get "New Moon On Monday" out of my head.

House M.D. "The Unfaithful" (5x15)