Figure 3 Chest imaging findings demonstrated the presence of multiple lung cysts with or without pulmonary pneumothoraxChest X-ray showed pneumothorax on the left side of the lung (A) and chest HRCT showed sparsely-distributed, thin-walled lung cysts in the lower lobes, with a large amount of pneumothorax at the left hemithorax and mild pneumothorax at the right hemithorax (B, C) of a 57-year-old Chinese woman, and subsequential chest X-ray (D) and chest HRCT performed after treatment of the pneumothorax (E, F). Chest HRCT demonstrated lung cysts in the subpleural (G, H) and basilar medial regions (I) of a 58-year-old Chinese woman. (White arrows indicate pulmonary pneumothorax, and red arrows indicate cystic lesions of the lungs).