Figure 2c. Bronchiectasis in a 51-year-old man who presented with recurrent hemoptysis. (a) Posteroanterior chest radiograph demonstrates severe cystic bronchiectasis in the middle lobe and lingula. (b–g) Images from a thoracic CT angiographic study performed with a 16–detector row scanner. (b) Axial CT scan obtained with parenchymal lung window settings (window center, –600 HU; window width, 1600 HU) demonstrates severe cystic bronchiectasis in the right middle lobe and in the lower divisions of the left upper lobe (lingula). (c–g) Thin-section MIP images obtained in the sagittal (c), axial (d), and coronal (e, f ) planes and a 3D volumetric reformatted image (g) depict markedly dilated and tortuous bronchial arteries (arrows in c) and hypertrophic right and left inferior phrenic arteries (arrows in d–g) arising from the abdominal aorta and supplying the areas of bronchiectasis.