Femoral artery pseudoaneurysm
Post coronary angiogram right groin swelling and pain
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There is a large pseudoaneurysm arising from the anteromedial aspect of the right femoral artery, measuring 20 x 16 mm (trans X AP). Arising from the anterior aspect of this, and extending superiorly, there is a small outpouching which fills in on the delayed scan, likely indicating active extravasation. The neck of the aneurysm arises at the level of the inferior epigastric artery. There is a moderate right groin haematoma extending within the extraperitoneal space into the right iliac fossa.
Post arterial puncture complications in the groin, such as pseudoaneurysms and AV fistulae, are best assessed initially with ultrasound. However due to the lack of ultrasound staff after hours, a CTA was performed instead in this case.
The pseudoaneurysm was successfully treat with US guided thrombin injection.