Gleason score 3+4=7

Hi,

I was going through my medical record where I noticed part of my diagnoses indicated “G7, T3a, bilateral small peripheral zones invasion”. After prostatectomy the report indicated pTC2 with "Negative Margin" and stating that the local excision was complete.

The current convention is to categorize a margin as negative if tumor cells are not at the inked margin, even if they are within a few cells of the margin.

Q: Considering that T3a downgraded to T2c with negative margin means diagnoses “bilateral small peripheral zones” was not true prior to operation, there was no invasion of peripheral zones?

My PSA, 22 months post prostatectomy is still undetectable.

I had a query and am sure there are good many members who could help and reply. I wonder how important is the post surgery pathology reports once PSA reaches 0.2 (that is when further treatment is needed) in planning future treatment plans? Or that from there onwards, further tests defines future treatments plan? 

Thank you all