Dear Chatch: You do not mention the size of the lump. Presumably, removing the lump and a safe margin of tissue will leave a good cosmetic result. Is your surgeon doing a sentinel lymph node biopsy? If he is only removing 2 nodes, that would be my assumption. If the lump is small, there is probably no need, at this point to do a CT or PET scan. You can choose to see an oncologist either before or after surgery. There is no wrong answer. If chemotherapy is recommended, it is usually given 3-4 weeks after surgery. If you want to discuss your situation with an oncologist before surgery, you should do this.
I was totally confused with conflicting information until I went to see my oncologist - before the surgery.
I felt he was a gift from heaven! He put all the pieces together for me. Once I had seen him, my surgeon got in contact with him also prior to my surgery to confirm treatment options.
I would strongly suggest anyone having this type of surgery see the oncologist before surgery.
Crystal