there's anything that indicates this could be melanoma. you try to remove this early and aggressively. >> very quickly before you go -- you have to go to your other job at the hospital, real importance is where it is. is it between the skull and membrane that covers the brain or further in? we just don't know. >> we don't know that. but i think even upstream from that, if this is melanoma, i think that's going to raise a series of questions is is this adequately treated now? is he going to need further treatment? will that delay his recovery? even if it's outside the membrane, as you point out, of the brain, that will raise all those questions for him, poppy. >> dr. sanjay gupta, thank you very much for the expertise. appreciate it. here to discuss the politics health care and also wishing senator john mccain a quick recovery. washington post political blog the fix and patrick healy political analyst.