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. 2022 Jun 14;305(3):590–596. doi: 10.1148/radiol.220365

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© 2022 by the Radiological Society of North America, Inc.

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Images in a 56-year-old man with sudden loss of consciousness 2 weeks after vaccination for COVID-19 and who was subsequently diagnosed with vaccine-induced immune thrombotic thrombocytopenia. (A) Axial contrast-enhanced maximum intensity projection CT venogram shows occlusive thrombus within the left transverse sinus (white arrow) and adjacent large-volume parenchymal hemorrhage in the left parietal lobe (red arrow). Subsequent whole-body imaging was performed. (B) Axial CT pulmonary angiogram shows a segmental pulmonary embolism (white arrow) and peripheral upper lobe infarct (red arrow). (C) Coronal contrast-enhanced abdominal CT scan shows a large-volume main and right portal vein thrombosis (white arrow) and hepatic vein thrombosis (red arrow). (D) Axial image from the same study as C shows hepatic vein thrombus in the middle and right hepatic veins (arrows). — Images in a 56-year-old man with sudden loss of consciousness 2 weeks after vaccination for COVID-19 and who was subsequently diagnosed with vaccine-induced immune thrombotic thrombocytopenia. (A) Axial contrast-enhanced maximum intensity projection CT venogram shows occlusive thrombus within the left transverse sinus (white arrow) and adjacent large-volume parenchymal hemorrhage in the left parietal lobe (red arrow). Subsequent whole-body imaging was performed. (B) Axial CT pulmonary angiogram shows a segmental pulmonary embolism (white arrow) and peripheral upper lobe infarct (red arrow). (C) Coronal contrast-enhanced abdominal CT scan shows a large-volume main and right portal vein thrombosis (white arrow) and hepatic vein thrombosis (red arrow). (D) Axial image from the same study as C shows hepatic vein thrombus in the middle and right hepatic veins (arrows).