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. 2023 May 17;91(3):203–223. doi: 10.3390/arm91030017

Figure 4.

Figure 4

Flow-chart to rule in or rule out a pneumothorax. Scanning the anterior zones, detection of B-lines, real images, lung sliding, or lung pulse have to be found to rule out a pneumothorax. The only sign that could rule in pneumothorax is the lung point, and to find it, it may be necessary to extend the research to the lateral zones. PTX = Pneumothorax.