I too have received the same diagnosis, melanoma in situ. Shortly before that I had another removal, it was squamous cell. With the melanoma diagnosis it was suggested to check with my gastroenterologist for a colonoscopy, have my omthamologist check my eyes and make sure my primary physician is made aware. I’ve had a few sites frozen and now waiting for the results of another biopsy. I am forever grateful for my Dermatologist!h