Revision 3 for 'Prostate cancer (staging)'All Revisions
Prostate cancer staging
|T1||Clinically inapparent tumor, and not visible on imaging|
|T2||Confined to gland|
|T3a||Extension through capsule|
|T3b||Extension into seminal vesicles|
|T4||Direct extension beyond 3b|
|N1||Regional LN involvement.|
Histological grading. A score of 1 to 5 is assigned to each of the two largest areas of tumor involvement in the samples obtained, based on the worst feature.
- 1 = aggressive.
- 5 = most aggressive.
These two scores are then added together to a Gleason score of 2 - 10.
- 2 - 4 = low grade
- 5 - 8 = intermediate grade
- 9 - 10 = high grade
As this is obtained on biopsy specimens and correlates to prognosis, it enables treatement to be tailored.