Prostate Cancer Stages and Gleason Scores Exam Questions with Correct Answers 100%
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Stage 1 The cancer is small and only in the prostate
Stage 2 The cancer is larger and may be in both lobes of the prostate but is still confined to
the prostate
Stage 3 The cancer has spread beyond the prostate to close by lymph glands or seminal
vesicles
Stage 4 The cancer has spread to other organs such as the bone and is referred to as
metastatic cancer. If prostate cancer spreads, or metastasizes, to the bone, you have prostate
cancer cells in the bone, not bone cancer
Gleason X Gleason Score cannot be determined
Gleason 6 or less The tumor tissue is well differentiated, less aggressive and likely to grow
more slowly
Gleason 7 The tumor tissue is moderately differentiated, moderately aggressive and likely to
grow but may not spread quickly
Gleason 8-10 The tumor tissue is poorly differentiated or undifferentiated, highly aggressive
and likely to grow faster and spread
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Stage 1 The cancer is small and only in the prostate
Stage 2 The cancer is larger and may be in both lobes of the prostate but is still confined to
the prostate
Stage 3 The cancer has spread beyond the prostate to close by lymph glands or seminal
vesicles
Stage 4 The cancer has spread to other organs such as the bone and is referred to as
metastatic cancer. If prostate cancer spreads, or metastasizes, to the bone, you have prostate
cancer cells in the bone, not bone cancer
Gleason X Gleason Score cannot be determined
Gleason 6 or less The tumor tissue is well differentiated, less aggressive and likely to grow
more slowly
Gleason 7 The tumor tissue is moderately differentiated, moderately aggressive and likely to
grow but may not spread quickly
Gleason 8-10 The tumor tissue is poorly differentiated or undifferentiated, highly aggressive
and likely to grow faster and spread
