Fig. 3From: Patterns and prognostic predictive value of perineural invasion in esophageal squamous cell carcinomaSurvival curves of ESCC patients with different PNI statuses. a DFS of ESCC according to PNI status. b OS of ESCC according to PNI status. ESCC, oesophageal squamous cell carcinoma; PNI, perineural invasion; DFS, disease-free survival; OS, overall survivalBack to article page