Hi, Do not worry about the pay ... Bone bruise is a non-specific term that is used by some radiologists. You do not really bruise your bone by bending down. I wonder if it could have been edema from osteoarthritis. Osteoarthritis and meniscal tears are often found together. You inidcate that the lump is over the medial mensicus ,,,you must have some medical knowledge! This painful lump may a meniscal cyst, if so, you have a meniscal tear. However, there are many other causes for lumps and further evaluation seems in order. Cancer is the big one that needs to be considered. Your primary doctor would want to know that you are having pain and have a lump. A repeat MRI would help a lot with the diagnosis. Best wishes and good luck,,,