<s>[INST] My mother suffer Left Vocal Cord Carcinoma in 2007. After found this my mother take 36 Radiotherapy siting. In 2008 once again my mother check CT Scan & result is no found any germs of Vocal cord. At present we are not further check up. My question is - This cancer is possible to come back, what i take my next step of treatment. [/INST] Hi and welcome to Healthcare magic.Thank you for the query.Itis hard to predict but if there is no sign of tumor now after radioth then prognosis is favorable. If there was lymph node or vessel infiltration then there is a high risk of recurence. all you can do is to do frequent check ups and report any new sign and symptoms.Wish you good health. Regards </s>