Provincial Unknown Primary of Head and Neck Cancer Treatment Guidelines

This is a clinical practice guideline for the treatment of unknown primary head and neck cancer. An unknown or ‘occult’ primary is one where a primary tumour cannot be identified after appropriate investigation, in a patient with no prior history of head and neck cancer. The guideline provides recommendations on the initial workup of all patients with a neck mass, as well as recommendations for staging, management, and cases of recurrent disease.