I was also a Gleason 3+4, pT3b with seminal-vesicle involvement, but they cut them out.
1) Also had Non-focal extraprostatic extension is present.
2) Then further down said Margin Involvement by Invasive Carcinoma in Area of Extraprostatic Extension (EPE): Not identified.
That seems to be a contradiction? First one means Non-focal extraprostatic extension (EPE) means prostate cancer cells have grown through the outer edge of the prostate gland into the surrounding fatty tissue in a more extensive or widespread manner rather than just a tiny, isolated spot.

The second one means the cancer does not touch the outer edge of the removed tissue sample in the area where it grows outside the prostate.