Welcome to the group, glad you found us.
Good that others can assist in your questions as my journey starts with primary unknown. No indication on the skin of where it was, suspect the couple of blistering sunburns I had in the 70’s.
An aggressively growing lump in my breast was Melanoma. Mastectomy on September 2018. After the mass was removed (6cm) and identified, started Opdivo. Additional metastases (Mets) presented, Opdivo considered a fail for me. Moved to a Chemo+Keytruda combo, and had good results. My first clear scan came off chemo, remained on Keytruda. Second PET scan, body is clear, but they found 3 brain mets. Meet with neurosurgeon on Tuesday.
Be diligent, it is a nasty cancer!!
Good luck… Barb