Figure 1. 68-year-old woman with marked right upper lobe atelectasis due to bronchial tuberculosis. (a) Posteroanterior radiograph showing markedly atelectatic right upper lobe as a band opacity at the right superior mediastinum (arrows). Note the small and elevated right hilum and the decreased vascular markings in the right lung. (b) CT clearly demonstrates the atelectatic right upper lobe as a band opacity (arrows).