If a lump is hard, circular, somewhat pea-like but larger, moves under the skin, but isn t necessarily soft and rubbery...can it still be a lipoma? He has one that appeared on the side of his hip at the top of his leg and one on his chest . I, his mother, have cysts and lipomas and know it is good for the lump to move, but he seems young to have these. He is 18.