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.
The volume of the prostate gland is measured from the scans. After the local anesthetic has had a chance to work, a biopsy gun is used to take 12 to 20 or more biopsy cores through the ultrasound probe. You can feel the manipulation and the clicking, but you should not feel pain.