Emergency treatment of delayed refractory rhinorrhea due to head trauma The patient was 16 years old, male, living in Huangshan City, Anhui Province, and was discharged from the hospital after local treatment for a head injury with skull base fracture caused by a fall from a height 1 month ago. The patient was referred to the Department of Interventional Medicine of Shanghai Oriental Hospital overnight. At this time, the patient had repeatedly bled several times, with a large amount of bleeding and a severe state of anemia. Under the guidance of Prof. Chun Fang, the chief of the department, cerebral angiography was given immediately, and the diagnosis of traumatic pseudoaneurysm of the cavernous sinus segment, about 2.5X1.8CM, was clearly made, and the corresponding involved vessels had been damaged and the ipsilateral cerebral blood supply was affected. According to the traditional way the patient’s affected carotid artery would be completely occluded to stop the bleeding, but considering that the patient was only 16 years old, the occlusion might leave functional impairment, and the future life and other factors. Director Fang resolutely decided to take interventional reconstruction of the injured vessel combined with aneurysm lumen embolization. After overnight emergency intervention, the patient’s carotid artery was saved and the pseudoaneurysm was completely embolized. After a period of recuperation, the patient recovered and was discharged from the hospital. After the treatment: Pre-treatment imaging; huge pseudoaneurysm in the cavernous sinus segment of the carotid artery After revascularization + aneurysm embolization treatment Reminder: Some patients with brain injury may have delayed rhinorrhea, cerebral hemorrhage or proptosis with conjunctival congestion after 2 weeks to 1 month, and may have fistula or pseudoaneurysm in the cavernous sinus segment, which must be treated actively and urgently. Interventional embolization is currently the most effective and direct treatment method, but the procedure is difficult and complicated. Through years of clinical experience, we have developed corresponding treatment plans for different lesions, and patients have obtained satisfactory results, greatly improving the eradication rate of the disease, and its clinical eradication rate has reached the international advanced level, and some of the techniques are currently in the international leading position.