National Cancer Institute
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Definition:
stage II prostate cancer (...PROS-tayt KAN-ser) listen
Cancer is more advanced than in stage I, but has not spread outside the prostate. Stage II is divided into stages IIA, IIB, and IIC. In stage IIA, cancer (1) is found in one-half or less of one side of the prostate. The prostate-specific antigen (PSA) level is at least 10 but lower than 20 and the Grade Group is 1 (Gleason score is 6 or less); or (2) is found in more than one-half of one side of the prostate or in both sides of the prostate. The PSA level is lower than 20 and the Grade Group is 1. In stage IIB, cancer is found in one or both sides of the prostate. The PSA level is lower than 20 and the Grade Group is 2 (Gleason score is 7). In stage IIC, cancer is found in one or both sides of the prostate. The PSA level is lower than 20 and the Grade Group is 3 or 4 (Gleason score is 7 or 8).
Enlarge Two-panel drawing of stage IIA prostate cancer; the top panel shows cancer in one-half or less of one side of the prostate. The PSA level is at least 10 but less than 20 and the Grade Group is 1. The bottom panel shows cancer in more than one-half of one side of the prostate. The PSA level is less than 20 and the Grade Group is 1. In both panels, the bladder, rectum, and urethra are also shown.

Stage IIA prostate cancer. Cancer is found in the prostate only. Cancer is found in one-half or less of one side of the prostate. The prostate-specific antigen (PSA) level is at least 10 but less than 20 and the Grade Group is 1; OR cancer is found in more than one-half of one side of the prostate or in both sides of the prostate. The PSA level is less than 20 and the Grade Group is 1.

Enlarge Stage IIB prostate cancer; drawing shows cancer in one side of the prostate. The PSA level is less than 20 and the Grade Group is 2. Also shown are the bladder, rectum, and urethra.

Stage IIB prostate cancer. Cancer is found in the prostate only. Cancer is found in one or both sides of the prostate. The prostate-specific antigen level is less than 20 and the Grade Group is 2.

Enlarge Stage IIC prostate cancer; drawing shows cancer in both sides of the prostate. The PSA level is less than 20 and the Grade Group is 3 or 4. Also shown are the bladder, rectum, and urethra.

Stage IIC prostate cancer. Cancer is found in the prostate only. Cancer is found in one or both sides of the prostate. The prostate-specific antigen level is less than 20 and the Grade Group is 3 or 4.