Basal Cell Carcinoma
As close to 100% yes as one can be.
Of all the skin cancers bcc's are the most common and the one to have if you really had to pick a skin cancer
to have. While there are very rare instances of metastatic bcc they are just that, by far the exception. However, if left untreated bccs can be very distractive locally. That's about as good an answer i can provide in the space given.