Soft movable lump on knee that has gotten bigger and harder but still moves. pain in calf and toes are numb and tingly. 3x size now help?

Exam needed: Calf pain,swelling and tenderness are signs of phlebitis and warrant an examination by a physician. Ultrasound will most likely be ordered. Soft,movable lump on a knee would also have to be examined. Possibilities include fluid in a bursa sac, benign fatty growth or inclusion cyst. Numbness and tingling of toes may be secondary to swelling within the calf pressing on nerves.