Table 3: Patients staged at T4 with different primary tumor volumes.

AJCC 7th T4 staging () 5-year OS 5-year LRFS 5-year DMFS 5-year DFS
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Tumor volume
 ≤46.4 mL (157)84.60.00097.20.0187.80.00182.40.000
 >46.4 mL (130)6287.872.158.9