Traumatic pseudoaneurysm of the superficial temporal artery

Pseudoaneurysms of the superficial temporal artery (STA) are uncommon vascular lesions. Approximately 75% of them result from blunt trauma. Other etiological factors include penetrating wounds, iatrogenic trauma such as hair grafting and neurosurgical procedures. Thorough history and physical examination are often sufficient to make the diagnosis. Imaging studies are recommended for closer morphology and to rule out intracranial vascular communications and other possibilities in the differential diagnosis. We present successful treatment of a traumatic STA pseudoaneurysm with ultrasound-guided percutaneuous thrombin injection.