Saw surgeon due to bulge in scrotum. upon physical exam only, he feels this is a hernia and proposes robotic surgery. is it possible that this is a spermatic cord lipoma and not hernia? if so will the cord lipoma be corrected during such a surgery?

See another doctor: This is a question best posed to the attending physician who evaluated you and made a diagnosis. However, I suspect you do not trust the opinion given. You will be best served by returning to the surgeon, expressing your apprehension and obtain clarification or seek out a new surgeon to do another evaluation. Good Luck.

Exam: Exam would usually be able to determine if hernia present and differentiate it from the other entities you mentioned. If any question, ct scan can also help confirm diagnosis. I agree with comment that if you are uncomfortable proceeding, don’t hesitate to get second opinion.

Rare things are rare: Any surgeon worth their certification can tell the difference between a common hernia & a rare spermatic cord defect. Robotic surgery is the state of the art repair approach in most cases. Most can have surgery, be home that day & drive the next with this method. If you don't like or trust the surgeon get another opinion.