1992 年 13 巻 2 号 p. 46-48
We report the peculiar clinical course of a boy who swallowed a ten-yen coin at the age of 8 months. The coin penetrated the esophageal wall, forming a granuloma around it. The granuloma pressed the trachea forward resulting in respiratory symptoms misdiagnosed as bronchial asthma at the age of 3. His clinical course suggests the importance of fundamental diagnostic procedures in the differential diagnosis of bronchial asthma.