Prostate cancer develops in cells of the prostate, resulting in a cancerous (malignant) tumour, which is a collection of cancerous cells with the potential to invade and destroy surrounding tissue. Prostate cancer can also spread to other parts of the body (i.e. metastasize).
This is one of the most common types of cancer among Canadians. Unfortunately, many older men get the disease without knowing it. Prostate cancer tends to grow slowly and can often be completely removed if detected early. Otherwise, treatment can be complicated.