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Bovine Arch
This surface shaded CTA of the aortic arch, demonstrates the left common carotid artery originating in common with the brachiocephalic artery (see diagram here). Indeed it is in this case almost a...
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Ruptured Abdominal Aortic Aneurysm
This patient presented with acute abdominal pain and hypotension. His non-contrast CT shows a large AAA and extensive periaortic haematoma. A thick (but subtle) hyperdense crescent is present within...
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Thoracic Aortic Dissection (DeBakey Type II)
In aortic dissection, blood enters the medial layer of the aortic wall through a tear or ulcer in the intima and tracks along the media, forming a second blood-filled channel within the wall. The...
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Takayasu Arteritis
This MR angiogram demonstrates findings typical of Takayasu arteritis. Takayasu arteritis is a granulomatous vasculitis of unknown etiology that commonly affects the thoracic and abdominal aorta. It...
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Traumatic Aortic Injury
This patient was involved in a high speed motor vehicle accident. There is a laceration of the proximal descending thoracic aorta (indicated by an intimal flap), periaortic haematoma and bilateral...
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Nutmeg Liver
Nutmeg liver is a perfusion abnormality of the liver due to hepatic venous congestion. When the hepatic veins are congested, contrast is prevented from diffusing through the liver in a normal manner....
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Thrombosed Prosthetic Tricuspid Valve in Ebsteins Anomaly
A 68-year-old woman with known Ebstein’s anomaly (EA) was admitted for the investigation of progressive breathlessness, reduced exercise tolerance (NYHA grade 2) and increasing leg swelling. On the...
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Endoleak
An endoleak is characterised by persistent blood flow within the aneurysm sac following endovascular aneurysm repair (EVAR). Normally the aortic stent-graft used in EVAR excludes the aneurysm from the...
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May-Thurner Syndrome
This patient presented with extensive left lower limb DVT that extended into the pelvis. CT abdomen/pelvis demonstrated compression of the left common iliac vein by the overlying right common iliac...
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Bilateral Popliteal Artery Aneurysms
CTA of this patient shows bilateral popliteal artery aneurysms, patent on the left and thrombosed on the right. Popliteal artery aneurysms are the most common peripheral arterial aneurysm. They are...
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