Welcome Gardner. I just finished Proton Therapy in January for a neck recurrence, and will have my post treatment PET/CT in May, and wish you good luck. As Doolittle mentioned, Brachial Cleft Cysts are often misdiagnosed. It was previously thought, and was debatable, that the cyst could possibly transform to SCC. These days, it is more recognized that if the cyst is SCC, is likely to be an early Metastases for
HPV in the oropharynx, usually the tonsil or BOT.
