Probably this is a most common question a doctor would like to ask his/her colleague for several reasons. Probably they like to surprise, confuse them with a complicated case. May be they just like to start a conversation on the way to coffee or lunch. May be they have not figured out the case yet but would like some help. But my guess is mostly they have some a priori clues to which the friend is not privy. Whatever the reason may be one cannot deny that it is a provocative question for the friend or colleague had to respond.

I wonder how many of us have reflected on this question deeply. I mean philosophically or metaphysically, the question has deep meaning and consequences. What if the guy thinks he has cancer (or worse if he has one)? For such an important question why do we hardly spend any time on thinking about it? I meant epistemology of diagnosis. For sure many of us are not…