Stage II recurrent nasopharyngeal carcinoma: Prognostic significance of retropharyngeal nodal metastasis, parapharyngeal invasion, and carotid encasement

Head & Neck
Jimmy Yu Wai ChanWilliam Ignace Wei

Abstract

The purpose of this study was to assess the predictability of the American Joint Committee on Cancer (AJCC) staging system on patients with stage II recurrent nasopharyngeal carcinoma (NPC). We conducted a retrospective review of the surgical outcome for patients with recurrent NPC and retropharyngeal lymph node (RLN) metastasis (group I), recurrent NPC and parapharyngeal space (PPS) invasion (group II), and recurrent NPC and internal carotid artery (ICA) encasement (group III). Between 1990 and 2013, 145 patients received an operation for stage II recurrent NPC (group I, n = 62; group II, n = 65; and group III, n = 18). The rate of local tumor recurrence was significantly higher in groups II and III. The rate of systemic metastasis was significantly higher in group III (16.7%). Accordingly, the 5-year overall survival was significantly worse for patients in group III (group I: 81.2%; group II: 68.4%; and group III: 48.5%). The significantly worse prognosis of recurrent NPC encasing the ICA warrants an upstage to the T3 classification in the current AJCC staging system.

References

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