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Call us 13 11 20 Staging prostate cancer Listen Staging prostate cancer ‘Staging’ refers to finding out how far the cancer has spread. The lower the number the less advanced the cancer. TNM system ‘T’ refers to the tumour, ‘N’ to node and ‘M’ to metastasis. In the TNM system for prostate cancer, below is a simplified description of the staging process: T1 tumour so small that it cannot be detected by feeling the prostate or by imaging T2 tumour can be felt but is still confined to the prostate T3 tumour extends through the prostatic capsule and may have spread into seminal vesicles T4 tumour invades adjacent structures other than seminal vesicles, such as bladder, rectum, pelvic wall N0 tumour not found in pelvic lymph nodes N1 tumour found in pelvic lymph nodes M0 tumour no distant metastases M1 tumour distant metastases Prostate cancer is given a grade indicating how fast the cancer may grow. A system called the Gleason score is used for grading. The score is obtained by giving the two most common tissue types from the biopsy a grade between 3–5. These two grades are added together to get a final score out of 10. A low Gleason score (2–6) indicates a slow-growing, less aggressive cancer. A medium Gleason score (7) indicates an intermediate cancer. A high score (8–10) indicates a faster growing, more aggressive cancer. Content printed from https://www.cancersa.org.au/information/a-z-index/staging-prostate-cancer This website is made possible by the generous support of South Australians. Copyright © 2010-2017 Cancer Council SA