Pulmonary Embolism: Westermark Sign
Arrow points to thrombus in right pulmonary artery. Westermark sign is avascular zone due to obstructed vessel from a blood clot. In this patient both bases have decreased vascular markings.
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Pulmonary Embolism: Westermark SignArrow points to thrombus in right pulmonary artery. Westermark sign is avascular zone due to obstructed vessel from a blood clot. In this patient both bases have decreased vascular markings.
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