i had a lump in the skin of my breats athen it was surgically removed and i dignosed it with cellular demratofibroma with mitosis 4/10 hpf and margins nt claer bt s-100 and cd34 both were negative...i m again havin a small lump of same nature bt smaller in size with that sticthing area where the previous dermatofibroma was found..so i dnt want it tp get checked so is this necesary?