<s>[INST] When I lean my head forward there is a large knot at the top left of my spine it does not hurt and I did go see a chiro and I was just scared it was cancer but he said from the X-rays it didnt look like that but he really didnt tell me what it could be Im going to a reg dr on Monday and he said my neck is a little out of alignment so he adjusted me back and neck but I know one wont make a difference but Im still worried [/INST] Hi, Thanks for writing in. If your doctor has examined you clinically and said that the know is due to a misalignment of the spinal vertebrae then most likely it is not a cancer. The spine is made up of many small bones aligned on top of each other. This is further supported by small discs in between any two vertebrae that provides cushioning to the bones. It is best that you get an MRI scan of the concerned region done as a part of evaluation of the problem you are facing. MRI scan will give complete details and there is no ambiguity of the presence of any abnormal tumor or cancer. Any misalignment also requires an MRI scan to be studied in detail. In conclusion, it is best to do an MRI scan of your spine in the region of the knot. This will show the misalignment in vertebrae and if there is any pressure on the spinal cord. Cancer of the spine will also be rule out by this way. Please do not worry. </s>