The physician who entered the field of medicine twenty-five years ago either was unfamiliar with bronchoscopy or associated it only with removal of foreign bodies which had become wedged in the air passages. These accidents were considered as rare medical curiosities, and as a result few physicians actually witnessed a bronchoscopic procedure. Now, a quarter of a century later, bronchology is a recognized specialty in medicine, and practically every large hospital has a well organized bronchoscopic clinic.
Originally designed and perfected for the removal of aspirated foreign bodies, bronchoscopy now is employed as an aid either in diagnosis or in treatment of practically all bronchopulmonary diseases associated with bronchial obstruction or with an increase of bronchial secretions. The scope of its uses has exceeded the original concepts so that its relation to certain fields of medicine and surgery can be considered as on a par with that of roentgenology. While