Hi Barry
Yes I was told the same, in that it would cause lymphodema, I had a second opinion and removed 32 of them during RP with no problems. I'm not saying you should follow this path but it's worth asking at your second opinion if you are seeing an Urologist and not an Oncologist.
Ps out of the 32 removed non were cancerous, so it shows they don't always get it right, did they biopsy them or are they going on an assumption due to the size and shape, or was a PET/CT scan done.
Roy