Liposarcoma knee. what are the symptoms of a liposarcoma behind the knee?

See below: Problems like these can only be correctly handled by your doctor in person. He/she needs to listen to you, perform an examination and possibly run labs or other tests. That's the only way he/she can find out what's going on and what to do about it.

Fatty tumor: A liposarcoma is very similar to its non-cancerous counterpart called a lipoma. Both are soft, fatty tumors that generally present themselves as a "lump". A liposarcoma will generally have more rapid growth and be larger (>5 cm) than a lipoma, however. Liposarcoma may cause symptoms of pain and swelling when it grows of significant size.