Figure 1. CT of a 69-year-old patient suffering from melanoptysis and severe bullous emphysema owing to coal worker's pneumoconiosis. Notice the air–fluid level within liquefied progressive massive fibrosis of 6 cm diameter. Parenchymal bands associated with local pleural thickening are visible around the lesion. Subcutaneous and mediastinal emphysema are secondary to bronchoscopy.

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