On my left leg, a little bit above and to the left side of my knee cap is a large hard sphere. It causes no pain and is most prominent when my leg is half bent and half straight. I have had it for a very long time and always forget to ask my doctor what it is.
HI, Dear,Welcome to Chat Doctor. Based on the facts and data of your query, You seem to have Chronic painless synovial thickening. Other cause could be-suprapatellar bursa. Hope this reply would help you to resolve your sever anxiety. Welcome for any further query in this regard. Will appreciate writing your feedback review comments, to help the needy patients like you at Chat Doctor. Good Day!! Chat Doctor. S. Genl-CVTS