You said...
One is in the R lobe, mid and occupied 33% of the sample with <5% higher than Gleason 3. Perineural invasion is present here.
I'm concerned about
the fraction of higher grade cancer. While the practice is to ignore it if it constitutes less then 5%, its existence is suggestive. There is a growing concern about
tertiary Gleason grades, and the need to engage in more refined analysis than the current Gleason grading system allows. To me, it would be cause for concern that there might be more happening. The PNI would also support at least a concern that there may be higher grade cancer in there. Before you make a decision, you might at least have your slides sent to Bostwick, Epstein, or some other expert lab for a second opinion on the biopsy results.
I hope all turns out rosy.
Nellie
[Edited after doing some research.]