EGFR and nasopharyngeal carcinoma: To better predict the prognosis of NPC, patients were divided into the following four groups based on SUVmax-T and EGFR expression: (a) EGFR negative and low SUVmax-T, (b) EGFR negative and high SUVmax-T, (c) EGFR positive and low SUVmax-T, and (d) EGFR positive and high SUVmax-T.