Research Article

Quantitative Metastatic Lymph Node Regions on Magnetic Resonance Imaging Are Superior to AJCC N Classification for the Prognosis of Nasopharyngeal Carcinoma

Figure 2

Proposed N classification derived from recursive partitioning analysis in patients with nasopharyngeal carcinoma. MLD: maximal lymph node diameter; LRN: number of metastatic lymph node regions; DMFS: distant metastasis-free survival.