A Case of Esophageal Submucosal Gland Duct Adenoma / 대한내과학회지

An esophageal submucosal gland duct adenoma is a rare benign disease. We report a 58-year-old man who presented with an esophageal submucosal tumor on health screening endoscopy. The endoscopic examination showed a round elevated lesion with central depression at the mid-esophagus. On endoscopic ultrasonography, an anechoic lesion with some hyperechoic septal structures measuring 8 mm in the largest diameter was observed in the third layer. We resected the lesion endoscopically. Histologically, there were several dilated gland ducts, with proliferation of the inner epithelial and outer myoepithelial cell layers. These findings were compatible with a submucosal gland duct adenoma of the esophagus.