[Bronchopulmonary granular cell tumor]

The so-called granular cell tumors, tumors of uncertain or disputed histogenesis, are generally rare, in the bronchial tree extremely rare. With regard to their localization, they are able--like a bronchogenic cancer--to cause mucus retention, bronchiectasis, recurrent pneumonias and atelectasis. A definitive diagnosis and typing of these benign tumors must be made before operation in the interest of an adequate therapy and avoiding overtreatment.