Abstract：
BACKGROUND: Traumatic intracranial aneurysms are rare, making up about 1% of all intracranial aneurysms. They can happen due to direct injury or blunt force, with the middle cerebral artery being the most frequent site. The middle meningeal artery (MMA) is the main artery that supplies the cranial dura mater, and, because of its location, is susceptible to damage after trauma. This article reported an unusual case of giant post-traumatic MMA pseudoaneurysm.
METHODS: A 45 year-old man was referred to our department with a history of craniectomy. He complained of non-specific headache, but neurological examination was normal. A follow-up brain CT scan identified a right temporal fossa hyperdense mass. Digital subtraction angiography diagnosed a traumatic MMA aneurysm. The patient was treated with preoperative aneurysm embolization and surgical resection.
CONCLUSIONS: Traumatic MMA aneurysm is a rare presentation after head trauma. It can manifest as epidural hematoma, subdural hematoma or intraparenchymal hematoma, and sometimes resembles the present case, which was discovered incidentally.
CONCLUSIONS: Pseudoaneurysm is a rare complication of MMA trauma, with late presentation. It should be considered in patients with history of traumatic brain injury and temporal fossa extra-axial mass lesion with vascular characteristics.
METHODS: A 45 year-old man was referred to our department with a history of craniectomy. He complained of non-specific headache, but neurological examination was normal. A follow-up brain CT scan identified a right temporal fossa hyperdense mass. Digital subtraction angiography diagnosed a traumatic MMA aneurysm. The patient was treated with preoperative aneurysm embolization and surgical resection.
CONCLUSIONS: Traumatic MMA aneurysm is a rare presentation after head trauma. It can manifest as epidural hematoma, subdural hematoma or intraparenchymal hematoma, and sometimes resembles the present case, which was discovered incidentally.
CONCLUSIONS: Pseudoaneurysm is a rare complication of MMA trauma, with late presentation. It should be considered in patients with history of traumatic brain injury and temporal fossa extra-axial mass lesion with vascular characteristics.
摘要：
背景：颅内动脉瘤很少见，占所有颅内动脉瘤的1%。它们可能是由于直接伤害或钝力而发生的，大脑中动脉是最常见的部位。脑膜中动脉（MMA）是供应颅骨硬膜的主要动脉，and,因为它的位置，创伤后容易受损.本文报道了一例罕见的巨大创伤后MMA假性动脉瘤。
方法：一名45岁的男子因开颅手术史被转诊到我们部门。他抱怨非特异性头痛，但神经系统检查正常.随后的脑部CT扫描发现了右颞窝高密度肿块。数字减影血管造影诊断为创伤性MMA动脉瘤。患者接受术前动脉瘤栓塞和手术切除治疗。
结论：创伤性MMA动脉瘤是头部创伤后的罕见表现。可以表现为硬膜外血肿,硬膜下血肿或实质内血肿，有时类似于目前的情况，这是偶然发现的。
结论：假性动脉瘤是MMA创伤的一种罕见并发症，迟到的介绍。对于有颅脑外伤史和颞窝轴外肿块病变有血管特征的患者应考虑。
方法：一名45岁的男子因开颅手术史被转诊到我们部门。他抱怨非特异性头痛，但神经系统检查正常.随后的脑部CT扫描发现了右颞窝高密度肿块。数字减影血管造影诊断为创伤性MMA动脉瘤。患者接受术前动脉瘤栓塞和手术切除治疗。
结论：创伤性MMA动脉瘤是头部创伤后的罕见表现。可以表现为硬膜外血肿,硬膜下血肿或实质内血肿，有时类似于目前的情况，这是偶然发现的。
结论：假性动脉瘤是MMA创伤的一种罕见并发症，迟到的介绍。对于有颅脑外伤史和颞窝轴外肿块病变有血管特征的患者应考虑。
