SHU93....I maybe wrong, but it sounds like your surgeon was looking for spread of cancer, knowing that the right side from the biopsy would be checked during the final pathology. Much like a my surgeon that tested the lymph nodes on both sides at the beginning before moving forward with the removal of the gland. Just take it as he was looking around and becoming familar with your cancer before doing any cutting to make sure he could get clean margins. As far as being able to "see" the cancer...good question, but I think it can be felt easier than seen if it is large enough. With robotic that tactical feel isn't there. Most PCa is multiplicity which means more than one tumor is present in either lobe. PCa is not generally one mass but made up of several smaller ones. That is why the biopsy won't catch all of the cancer locations and is why the pathology is usually different than the biopsy when it comes to the amount of PCa and the grade and sometimes stage.
Great news on being zero and here's hoping for a lifetime.
Age 58 at Diagnosis
Oct 2006 - PSA 2.6 - DRE Normal
May 2008 - PSA 4.6 - DRE Normal / TRUS normal-Gland 38 cc
July 2008 - Biopsy 4 of 12 Positive 5 - 30% Involved Bilateral (Perineural Invasion present at base)
Gleason (3+3) 6 Stage T1C
August 23 - Bone Scan - Hips, Spine and ribs marked uptake - X-Ray showed clear -Hooray
Sept 9 2nd DRE - questionable - TRUS...shadow in base - Gland now 41 cc
Robotic Surgery Sept 18, 2008
Pathology October 1,2008
Gleason 7 (4+3) Staged pT2c NO MX
Gland 50 cc
Seminal Vesicles and Lymph Nodes clear
Positive Margins Right Posterior Lobe
14 tumors in prostate - largest being 6 cm