<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, I have a lump on the outer of my thigh invbetween the back of my leg and knee cap.. It feels like it has roots Coming off it.. It is a little bigger that pea size... I tryed to squeze it but nothing has. Come out.., it has been there about 3 eeeks  <response>: Hello! Welcome to Chat Doctor. This can be a Mordant Bakers cyst, as you said its coming from knee.Its a benign cyst communicating with the knee joint.Also, it can be a lipoma or sebaceous cyst rarely. In my clinic, after clinical examination, I advise FNAC - fine needle aspiration cytology for confirmation of the diagnosis, if in doubt. Treatment is marsupialization for Bakers cyst for any other benign symptomatic lump, excision biopsy is done i.e. swelling is removed under local anesthesia sent for histopathological examination. Complete removal along with whole of the cyst wall is important. Hope this helps. Wish you healthy life. Thanks. Regards. 