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DescriptionCT of lung infarction with reverse halo sign, annotated.png
English: Thorax CT of a 74-year-old man with a long-standing pulmonary embolism (having lasted 3 months) of the artery of the right lower lobe, secondary to a leg fracture, and with long-standing hemoptysis. It shows the embolism, as well as a pulmonary infarction (white arrow) seen as a reverse halo sign (black arrow).
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