| Summary: | A 71 year-old man with chronic obstructive pulmonary disease (COPD) presents to the emergency department complaining of dyspnea after recent admission for pneumonia. Chest CT shows a low density collection in the right lung suggesting necrosis (Figure 1). A CT obtained 1 week after admission (Figure 2) shows progression to empyema. Management of empyema can be difficult. If the fluid cannot be removed with a therapeutic thoracentesis, a chest tube should be inserted and consideration be given to the intrapleural instillation of fibrinolytics (1). If the loculated effusion persists, the patient should be subjected to video-assisted thoracoscopic surgery. If the lung cannot be expanded with this procedure, a full thoracotomy with decortication should be performed. The definitive procedure should be performed within fourteen days.
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