What is Gleason Score?
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By: Dr. Nicola J.
Nasser, MD, PhD
Gleason score is a
pathologic grading of prostate cancer. It
depicts the degree of aggressiveness of the
tumor, by providing a score from 1-5 to the
two most prevalent histological patterns in
the tumor. Examples:
Gleason Score
(GS) |
Description |
GS 3+3 |
the most two prevalent
histological patterns have a score
of 3 |
GS 4+3 |
The most prevalent histological
pattern have the score of 4, and the
second most prevalent pattern have
the score of 3 |
GS 3+4 |
The most prevalent histological
pattern have the score of 3, and the
second most prevalent pattern have
the score of 4 |
|
Combined Gleason
Score (GS) |
Description |
Gleason Score
2-6 |
Good risk |
Gleason Score
7 |
Intermediate risk |
Gleason Score
8-10 |
High risk |
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