[Yak yak yak how do we find this tumor if we can't bring the guy to the hospital and have only limited equipment...]Woohoo! Geology metaphors strike again! (Although this one is kind of in reverse, but still, it's cool. I did a little happy dance when I heard it a few minutes ago.)
House: "What part of olivine, pyroxene and amphibole don't you understand?"
Cameron: "They're indicator minerals. You can't see diamonds so you look for the indicator minerals."