Endoscopic submucosal dissection for resection of giant adenoid cystic carcinoma of the esophagus

A 53-year-old man presented with progressive dysphagia and retrosternal pain. A gastroscope revealed a giant pronounced protrusion lesion with a thick pedicle in the lower esophagus measuring approximately 60 × 25 mm. Further refinement via computed tomography (CT) indicated an occupying lesion in the distal esophagus with no evidence of metastatic disease present; this led to the suggestion of performing an endoscopic resection