Fig. 3From: Successful conversion surgery following chemotherapy with an immune checkpoint inhibitor in an older adult patient with stage IVB esophageal squamous cell carcinoma: a case reportPET–CT. PET–CT reveals the abnormal FDG accumulation in the esophageal wall in the thoracic lower esophagus (a), regional lymph nodes (b, white circle), and the lymph node on the dorsal surface of the inferior vena cava (c, yellow circle). Following preoperative treatment, the abnormal FDG accumulation in the esophageal wall in the thoracic lower esophagus (d), regional lymph nodes (e, white circle) and the lymph node on the dorsal surface of the inferior vena cava (f, yellow circle) disappearedBack to article page