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Fig. 8 | Insights into Imaging

Fig. 8

From: Thoracic abnormal air collections in patients in the intensive care unit: radiograph findings correlated with CT

Fig. 8

A skin fold mimicking pneumothorax on a radiograph in a 66-year-old woman with glioblastoma. The skin fold appears as a broad radiopaque band (black arrows) that is adjacent to a radiolucent band (white arrows), which reflects a negative Mach band effect in the left lung field on a supine radiograph. It extends beyond the pleural cavity. Vascular markings (black arrowhead) are visible beyond its edge

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