A 69-year-old man with COPD and ischemic heart disease was admitted with dyspnea to the ED. Nine hours prior to the admission, the patient had been seen in an outpatient clinic where a CT scan-guided biopsy of an opacity in the right lung had been performed. After the biopsy, the patient did not have any complaints. A control CT scan of the chest following the biopsy as well as a control chest radiograph 4 h after the biopsy had been performed did not have signs of pneumothorax or other complications. The patient was allowed to go home without any further observation.