An Observational Study of Clinical Treatments for Patients With Oropharyngeal Carcinoma

This is a prospective, observational study evaluating the effect and efficiency of different clinical treatments for patients with oropharyngeal carcinoma (OPC). The selection of treatment for individual patient is based on tumor characteristics (tumor size and tumor location), a complete assessment of therapeutic effects (treatment effectiveness, possible dysfunction after operation, function maintenance, complications, etc.), and the preferences of doctors and patients.