<s>[INST] 2yrs ago or so had cancer growth removed from my chin--seems to have returned in slightly different area--still on the chin, should i get this ck'd out even tho my oncologist advised me if it would make me feel better to do so--he did not indicate it looked canxerous nor offer to have biospy done?? [/INST] hello thanks for consulting at hcm..i advise u take an second opinion  with oncologist and for an biopsy of that region and a consult with a oral pathologist..better to be preventive na..hope it helps,,tc </s>