I am 31 years old, no history of breast cancer or lymphoma in my family. I felt a lump under my armpit and immediately went to my doctor. He sent me for a mammogram and ultrasound and to a surgeon.
The mammogram and ultrasound both came back negative. The surgeon felt the lump, did another ultrasound and told me it would probably go away, and that it did not look like cancer. Three months later it is still here and my insurance company approved me for an MRI (after the surgeon wrote a prescription for it). The MRI came back negative, no sign of cancer.
The surgeon says with all those tests it is probably not cancer, but we could do a biopsy just to see what it is. Should I get a biopsy? I don't want to have a bunch of unnecessary tests but I do want to figure out what this thing under my armpit is. What else could it be, if not cancer? I doubt a swollen lymph node would be around this long (3 months)...right?