How Does Magnetic Resonance Imaging Influence Staging According to AJCC Staging System for Nasopharyngeal Carcinoma Compared With Computed Tomography?

MRI demonstrated early primary tumor involvement more precisely and deep primary tumor infiltration more easily. The use of MRI caused dramatic changes in the results of the T stage and clinical staging and should be preferred to CT in staging NPC. Patients would benefit from changes in treatment strategies resulting from the use of MRI.