throwaway153371

> it tells you you're fine, nothing is wrong, don't do anything

Fair point. I could see a lot of people doing that.

I guess I don’t understand how it’s dangerous. I’m not giving myself any kind of independent treatment based on the output of an LLM. But it provides possibilities that doctors may have overlooked. Those doctors can then empirically assess the possibility in detail to determine whether it is correct.

I didn’t. I followed up with a doctor and mentioned the possibility of mono who then performed the EBV tests and provided the official diagnosis after previously seeing a different doctor who incorrectly diagnosed the problem as eczema.

Unpopular take: ChatGPT is better at diagnosing medical problems than a doctor who does a cursory evaluation.

By cursory, I mean an evaluation that does not take into account a very thorough assessment of all the evidence. P(condition | evidence) is not very accurate when the evidence is vague and sounds like many other conditions. It is a rare doctor who spends more than a few minutes asking about all possible symptoms, even those that may not occur to the patient that they have. Such doctors certainly exist, and I’ve had a few, but for the most part I have to do my own research and present it to a doctor for it to even be considered as a possibility.

As anecdata of one, I’ve been having all sorts of weird rashes that come and go. Could be eczema, lupus, psoriasis, who knows. Googling makes you think it could be anything. So I took my entire medical history, all medications, all symptoms, their frequency, etc. and threw everything into ChatGPT with the prompt “Give me a list of possible diagnoses ranked by likelihood based on the evidence”. At the top of the list “Mononucleosis (EBV induced)”.

Ah, but I forgot to mention that I had mono 12 years ago. I can’t catch that twice. So I told ChatGPT that I had it previously. “Still mono. Possibly recurrent due to some problem of the immune system.” So I went and got an EBV antibody panel. Positive for all three, including the EBNA test which is positive if you ever had mono previously.

It blew my mind that a LLM sussed this out, because mono wasn’t even on my radar.