[Conventional roentgen diagnosis of bronchial cancer]

The incidence of lung cancer has increased tenfold since 1930. Early diagnosis using screening examinations have not been rewarding and even today lung cancer is usually diagnosed only at a late stage. Three manifestations-central lung cancer with endobronchial growth, central lung cancer with peribronchial growth and peripheral lung cancer-are the ones most frequently detected by x-ray examination. The staging of cancer, which determine the therapy, relies on x-ray findings to a great extent.