Hi, my husband (35 years old) has had 2 lipoma glands in his left and right arm, near the elbow. Both moveable and painless and been there for years. He recently developed another lump on his mid back, towards left. but its not moveable, very hard and tender on touch. He can not lay on his back and it hurts when he sits resting his back. Also, the skin over the lump is reddish. Do we need to be worried? He has a strong family cancer history. His mother's brother died of renal cancer at the age of 35 and his mothers sister was diagnosed with renal Cancer last month.