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NCI Dictionary of Cancer Terms

stage III prostate cancer  listen  (...PROS-tayt KAN-ser)

  Cancer has spread beyond the outer layer of the prostate and may have spread to the seminal vesicles. The prostate-specific antigen (PSA) level can be any level and the Gleason score can range from 2 to 10.

Prostate cancer staging; six  panel drawing showing a side view of normal  male  anatomy and closeup views of Stage I, Stage IIA, Stage IIB, Stage III, and Stage IV  showing cancer growing from within the  prostate to nearby tissue and then to lymph nodes or other parts of the body.