I had a uss last year and showed limpomatous mass. However my leg has been becoming increasingly painful and feels heavy.. I am still awaiting a mri. Could it be that is pressing on a nerve but still be benign ? Or can it be something more serious ? I can't describe it but sometimes at night feel like I want to chop of my leg like there stabbing pain ( don't know how else to describe it . My friends relatives said that it can't be benign anymore if it's so painful. I'm trying to keep positive  am sure the Dr's couldnt have diagnosed wrong from uss scan last year  ? Thanks for your help