Fig. 4From: Expression status of p53 and organic cation transporter 1 is correlated with poor response to preoperative chemotherapy in esophageal squamous cell carcinomaEndoscopic findings of a tumor with a histological grade 2 response from an ESCC patient. Pretreatment endoscopy showed an irregularly protruded lesion (A). After preoperative chemotherapy, the tumor had almost disappeared (B)Back to article page