Altman, R. L., Miller, W. E., Carr, D. T., Payne, W. S., and Woolner, L. B. (1973).Thorax, 28, 433-434. Radiographic appearance of bronchial carcinoid. The chest radiographs of 67 patients with bronchial carcinoid were reviewed. Seven had negative radiographs. Fifty-five had single abnormalities, the common manifestations being collapse or pneumonitis (21 patients), a small peripheral mass (20 patients), and a hilar or perihilar mass (11 patients). Five patients had multiple abnormalities, the most common combination being a mass with evidence of bronchial obstruction such as collapse of the related segment or lobe. Comparison with other reports revealed a significant difference in the frequency of the various abnormalities, a difference probably due to chance variations in the locations and to the age of the tumours at the time of diagnosis.