Figure 1.

(case 1)(A)Barium esophagram showing a protruding lesion in the middle third of the esophagus; (B) Computed tomography views of the case 1; (C) Endoscopic finding. It showed a polypoid lesion at the mid-esophagus; (D) A cauliflower-like lesion; (E) It shows numerous enlarged hyperchromatic nuclei containing eosinophilic material (H&E stain, ×400).