Fig. 1From: Clinicopathological factors influencing the outcomes of surgical treatment in patients with T4a hypopharyngeal cancerKaplan-Meier disease-free survival curves according to resection margin involvement (a) and extracapsular spread (b). Resection margin involvement (p < 0.001) and extracapsular spread (p = 0.025) showed significant associations with 5-year disease-free survivalBack to article page