As a favor to his former girlfriend Stacy Warner, House drugs her husband Mark who refused to be examined by him. He's diagnosed with brain symptoms that seem to fit encephalitis or Alzheimer, but tests prove inconclusive. Chase found that he took amphetamines. Then a row with Stacy causes Greg to discover that Mark has erratic memory loss. He concludes porphyria is likely, but the only test to justify dangerous therapy is perilous, especially as Mark refuses to take the attack-inducing cocktail.
Did You Know?
[All trivia items for this title are spoilers.
House orders a PET scan to study metabolic activity of Mark's brain. When Forman explains the procedure to Mark, he mentions that they are going to use FDDNP, a PET tracer not capable of revealing metabolic activity. Normally, FDG scan is used to visualize metabolic activity. See more
Dr. Allison Cameron
Any family history?
Of... whacked-out-ness? His sister voted for Nader - twice - that's about it.
I Call It Love
Written by Wayne Jones
and Windy Wagner
Performed by Windy Wagner See more