My 17-year-old son has a hard lump under the skin at the back of his neck just above his hairline. The lump is now about the size of a peanut and has grown over the last week, though I am not sure when it formed. It is not attached to the skin, but is hard and stationary on the tissue under the skin. He reports that it is slightly painful when it is touched. He has an appointment with his primary care physician next week, in the meantime, I am a bit concerned.
Hi, I had gone through your question and understand your concerns. There is no need to be concerned since considering your description this may be benign subcutaneous lesion such as lipoma, fibrous or atheroma and if there are no skin changes such as redness, pus discharge or pain and fever then you should not be worried since it can be easily surgically removed under local anesthesia. Then if there are doubts it can be sent to the patohistologic analysis to rule out some more serious issues. But as I said, anything serious is rare in his age and he would have some other signs. Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. I will be happy to answer your questions. Wishing you good health.