Melanoma: The most dangerous form of skin cancer, a malignancy of the melanocyte, the cell that produces pigment in the skin.
Statistically, the probability of having a prostate cancer present with a PSA of between 4 and 10 is around 22 per cent. Once the PSA level rises above 10, the probability goes up to the order of 64 per cent.
Types of prostate biopsy procedures. Prostate biopsy samples can be collected in different ways. Your prostate biopsy may involve: Passing the needle through the wall of the rectum (transrectal biopsy). This is the most common way of performing a prostate biopsy. Inserting the needle through the area of skin between the anus and scrotum (transperineal biopsy). A small cut is made in the area of skin (perineum) between the anus and the scrotum.