I am a 53 year old female in good health. About 6 weeks ago I woke up with a sore neck and when I felt my collarbone there was quite a large lump. When I saw the doctor (not my usual as he was on holidays) she was very concerned and sent me for a chest x-ray and blood work. That came back showing no disease and within normal ranges. She told me I must have had the lump a lot longer and that it was just fat. I went to my regular doctor and he said they would definitely find out what was wrong so I went for an ultrasound (showed nothing) and then a CT scan (also showed nothing). He said he was surprised because he thought it would show a lypoma but he said it must be just fat. I m having shortness of breath and can t decide if this is anxiety or related. What next steps would you suggest? My doctor said I should see a cosmetic surgeon to have the lump removed. I m not doing this for cosmetic reasons. I m concerned about the lump - The right side of my neck is a bit swollen too (it wasn t at first) but not near as big. Do you think this is just an infection?