Welcome @williamfh to the club no one wants to be in, however, I have to say I find the support to be tremendous and much needed. Hope we can provide the same to you, although it helps to keep in mind of course every case is individual and what works for some - or how some react - may not be the same for everyone.

As a retired medical professional myself, I also did quite a bit of online research. One thing I learned is advances in melanoma are taking place so rapidly that treatments and prognoses we find by google searches may be outdated. It helps to always check for more recent data and/or for participating in sessions offered by reliable organizations. For example, I've participated in zoom sessions conducted by the Melanoma Research Alliance and will be attending one at a nearby university in a few weeks. This is due to my own diagnosis of Stage 4 metastatic melanoma nearly 5 years status post WLE of a 1A amelatonic skin lesion. I am due for my third Keytruda infusion next week; to date, I've experienced no untoward side effects despite being informed and reading of several potential ones online prior to treatment. The infusion staff has been very reassuring about the low incidence they've observed with this form of immunotherapy.

I'm also a candidate for possible surgical removal of my identified lung nodule once I undergo a CT scan later this month. The rationale for this is based on a SWOG study my oncologist referenced and I found more readilyy explained in an NIH document Immunotherapy before Surgery Appears Effective for Some with Melanoma.

I hope these references provide you with some additional resources.