 [ Symptoms ] 47 and have a painless hard lump below my left knee that came 2 days ago i have a ligament tear on that knee what is it  i have been exercising regularly mostly on the elliptical machine with weights and on the floor working my abs the lump is hard but there is no pain either to touch or on my knee [ Disease ] yes that would be one of the more logical possibilities to account for large reactive cervical lymph nodes i am glad you are seeing an ent