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Table 2 T Stage and GTVprn

From: Clinical application of tumor volume in advanced nasopharyngeal carcinoma to predict outcome

  GTVprn (ml) Patients (%)
T stage Median Range GTVprn < 13 cm GTVprn ≥ 13 cm
T1 (n = 20) 4.60 1.3--11.4 20 (100) 0 (0)
T2 (n = 35) 15.3 2.3--37.2 17 (49) 18 (51)
T3 (n = 23) 21.3 3.6--130.7 14 (61) 9 (39)
T4 (n = 32) 31.9 6.7--166.6 12 (38) 20 (62)
  1. GTVprn, gross tumor volume of primary tumor plus retropharyngeal nodes