Hi, dear I have gone through your question. I can understand your concern. You may have some soft tissue tumor like lipoma or neurofibroma. You should go for fine needle aspiration cytology or biopsy and ultrasound study. It will give you exact diagnosis. If it is lipoma then it can be left there. There is very rare chance of malignancy in it. So if you don t want to remove it then also its ok. Only indication of surgery is pain, cosmetic purpose or increase in size. Consult your doctor and take treatment accordingly. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using health care magic. Wish you a very good health.