### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have had for about 20 years a growth on my leg below the knee and it has been getting larger every year and now is the size of a lime on the outside of my leg.  It is hard and hotter than the rest of my leg, there are 2 large veins running thru it and it can not be touched or severe pain will result....any ideas as to what it is so I can take a natural approach in getting it resolved

### output:

Hi, Dear thanks for the query to Chat Doctor. I studied your query in-depth.-I advise you on Cause and treatment- as follows-In my opinion-Your lump has been there for quite many yrs as told by you.-Hence you should not take natural approach but a studied Approach as advised from an ER Surgeon and your family doctor who both could treat it nicely for you.-Sever pain with large veins with hard lump suggests-? Osteo-clastoma-on outside your knee area. The fact that it was present for many yrs and has recently grown in to hard hot lump with sever pain-indicates -Osteo-clastoma of the Fibular HeadTreatment-would be--Confirm the diagnosis by FNAC Biopsy from ER Orthopaedic-Surgeon.-IF the HPR is Giant Cell Tumour-Marginal Intraluminal Excision of Osteoclast- of fibular head with Perineal nerve preservation could be planed by your orthopedic surgeon. This would help you to plan a treatment for this query. So don't worry and act fast ASAP. Hope this would help your worry to take proper steps for health. Wishing you fast recovery. Wellcome again if you have any more query in this regard. Have a Good Day.