You will have a head and neck CT or MRI every 6 months for the first year after the biopsy to make sure the disease has not come back. You will have a chest x-ray 1 year after the biopsy to make sure the disease has not come back. The head and neck CT or MRI will be repeated 1 time each year for 5 years after the biopsy, as well as whenever the doctor thinks it is needed.