The N staging system in nasopharyngeal carcinoma with radiation therapy oncology group guidelines for lymph node levels based on magnetic resonance imaging.

@article{Mao2008TheNS,
  title={The N staging system in nasopharyngeal carcinoma with radiation therapy oncology group guidelines for lymph node levels based on magnetic resonance imaging.},
  author={Y. P. Mao and S Liang and Li-Zhi Liu and Yong Chen and Ying Sun and Ling-Long Tang and Li Tian and Ai-hua Lin and Meng-zhong Liu and Li Li and Jun Ma},
  journal={Clinical cancer research : an official journal of the American Association for Cancer Research},
  year={2008},
  volume={14 22},
  pages={7497-503}
}
PURPOSE To evaluate the prognostic value of variables including nodal size, level, laterality, extranodal neoplastic spread (ENS), and necrosis in patients with nasopharyngeal carcinoma (NPC) and further explore the feasibility of an N-staging system using Radiation Therapy Oncology Group (RTOG) guidelines for lymph node levels based on magnetic resonance imaging (MRI). EXPERIMENTAL DESIGN The MRI scans of 924 patients with histologically diagnosed nondisseminated NPC were reviewed… CONTINUE READING

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