<s>[INST] Hello Dr. , I have a lump (feels hard) on my inner arm the same side where I had cancer lump under armpit couple years ago. Should I be worried? THey only removed one sentinel lymph node and was negative. I wonder if there should be more lymph node removed and tested. Tanya [/INST] Hi Tanya ! Good morning. I am Dr Shareef answering your query.If I were your doctor, after a complete physical examination I would advise you for a FNAC (fine needle aspiration cytology) of the hard lump you mentioned on your inner arm. If it was inconclusive, then an excision biopsy with a reasonable margin of healthy skin would come into picture. Further management would depend on the report of the histo-pathology, and physical examination of the adjoining areas including the area of the original malignancy.I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts.Thanks for choosing health care magic to clear doubts on your health problems. I wish you an early recovery. Dr Shareef. </s>