[Frequency and causes of hemoptysis and role of bronchoscopy in patients with normal chest roentgenogram hospitalized in the Department of Physiopneumonology Silesian Medical University in the years 1961-1996].

Among 3498 patients with hemoptysis 513 had normal chest x-ray picture. Bronchoscopy performed in all these patients allowed to recognise malignant neoplasms of the lungs, trachea and pharynx in 109 patients. In 222 patients--nonspecific bronchitis and in 46--tuberculosis were recognised. In 86 patients diagnosis was not established.