Re: Differences in Path Reports.
They look at stained slides and note the appearance of the cells (Gleason grades) in the lesions. If that particular slide's cells are within normal range, it is not part of the cancerous length. Some pathologists are better at identifying those grades than others. That's why it's a good idea to have the cores read by a pathologist who specializes in reading prostate cancer only. It takes a lot of experience.
It doesn't look like the two readings would make a difference in your treatment options.