Fleischner sign
Pattern seen in radiologic examinations
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Fleischner sign is a radiological sign that aids the diagnosis of pulmonary embolism.[1] The sign indicates the dilatation of the proximal pulmonary arteries due to pulmonary embolism.[2] It was named after Felix Fleischner, who first described it.[3] The Fleishner sign is seen both on X-ray and CT scan of chest/thorax.