**11. Post-treatment surveillance**

Following the completion of treatment, the patient should be evaluated clinically once in 3 months for the initial 2 years, once in 6 months for 5 years, and yearly thereafter. Persisting symptoms, radiating pain to the ear, etc. warrants local recurrence. Negative PET/CT scan obtained between 3 and 6 months after completion of treatment and at 12 months post-treatment is associated with a good prognosis. Considering the low recurrence rate in HPV positive OPSCC and the cost involved, it's not a routine investigation that is followed.

*Human Papillomavirus Associated Oropharyngeal Carcinoma-Diagnosis and Management DOI: http://dx.doi.org/10.5772/intechopen.96234*
