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Fig. 4 | Critical Ultrasound Journal

Fig. 4

From: ABCDE of prehospital ultrasonography: a narrative review

Fig. 4

Pneumothorax + A-line. A-lines are reflections of the pleural line caused by gas below the parietal pleura. An A-line is indicated by the arrows. The A is for “air” either within or outside of the lung. In case of a pneumothorax, there are no B-lines (Fig. 2) that may obscure the A-lines making them stand out more clearly

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