Prostate cancer is defined as cancer of the prostate gland, which is located below the bladder (which stores urine and certain seminal secretions) and developed when the gland began to expand. Adenocarcinomas are the most common kind of prostate cancer, although there are a few other varieties of prostate cancer, such as Small cell carcinomas, Neuroendocrine tumors, Transitional cell carcinomas, and Sarcomas. Continue Reading...