Esophageal cancer with esophageal duplication cyst.

Esophageal duplication cysts are benign, asymptomatic anomalies of foregut formation. We report a case of esophageal duplication cyst with esophageal squamous cancer. An upper endoscopy visualized with esophageal scan disclosed a stenotic lesion in the lower esophagus. Computed tomography images revealed a cystic mass in the inferior mediastinum, which was on the right wall of the esophagus. The postoperative pathology report confirmed the diagnosis of esophageal squamous cancer (ulcer type) and esophageal duplication cyst with calcification.