Nancy,
I have had four reoccurances with associated operations at Johns Hopkins. My head and neck surgeon has found some during a routine visit and I have noticed a lump at times and asked him to check it out. During the entire time I have had one CT scan and one PET scan. I have not seen an RO nor MO. In the beginning I saw the doc every three months and now it is once a year. My check up was last Wednesday and I am cancer free. Should you have a specific question I suggest you send it directly to me.
Vernon