抄録
We report a case of asymptomatic tubular esophageal duplication that was discovered incidentally. A 60-year-old man was hospitalized for investigation of the sudden onset of dyspnea. Under esophagography, a tubular outline was noted both in the cervical and the mid-esophageal regions. Tubular walls were endoscopically observed at a distance of 24 cm and 34 cm from the upper incisors of which diameters were respectively, 15×10 mm and 8×10 mm. Thus, the diagnosis of esophageal duplication was confirmed. Biopsy was not performed. A esophageal duplication that remains asymptomatic since birth and has the specific tubular pattern as seen in this case is extremely rare.