I have been having deep thigh pain since my 2014 meniscal allograft transplant. Two fairly good sized lumps seem to be in the quad also.nthey can be palpated. My ortho keeps saying its not cancer and he has no idea what they are. But won't do any imaging tests. I have been having trouble sleeping since due to the pain. There was a complication during surgery getting the graft fitted and it took 4 hours.