产前三维超声诊断硬脑膜动静脉畸形：1 例不常见病例报告。
Prenatal Three-Dimensional Ultrasound Diagnosis of Dural Sinus Arteriovenous Malformation: An Unusual Case Report.
机构信息
Department of Ultrasonic Medicine, West China Second Hospital of Sichuan University, No. 20, Section 3, South Renmin Road, Chengdu, Sichuan Province 610041, China.
Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China.
出版信息
Curr Med Imaging. 2024;20:e15734056310875. doi: 10.2174/0115734056310875240918043257.
BACKGROUND
Dural sinus arteriovenous malformation is an uncommon intracranial vascular malformation. The affected cases may suffer from severe neurological injury. Prenatal ultrasound has been used to diagnose fetal intracranial vascular abnormality, but prenatal three-dimensional (3D) ultrasound presents a very rare anomaly; an arteriovenous malformation of the dural sinus has not been reported.
OBJECTIVE
This study aimed to emphasize the diagnostic value of 3D ultrasound in the fetus with dural sinus arteriovenous malformation.
CASE PRESENTATION
A 38-year-old woman was referred for targeted fetal ultrasonography at 37 weeks of gestation due to an ultrasound that showed a cystic lesion in the posterior cranial fossa. The fetus demonstrated obvious dilatation of the torcular herophili, bilateral transverse sinuses, and bilateral sigmoid sinuses, appearing as a novel bull's horn sign on 3D ultrasound. After birth, cerebral angiography confirmed the diagnosis of dural arteriovenous fistula (DAVF) in the occipital sinus region.
CONCLUSION
3D ultrasound is an appealing method for prenatal diagnosis of dural sinus arteriovenous malformation.
背景
硬脑膜窦动静脉畸形是一种少见的颅内血管畸形。受影响的病例可能会遭受严重的神经损伤。产前超声已被用于诊断胎儿颅内血管异常，但产前三维（3D）超声呈现出一种非常罕见的异常；硬脑膜窦动静脉畸形尚未报道。
目的
本研究旨在强调 3D 超声在胎儿硬脑膜窦动静脉畸形中的诊断价值。
病例介绍
一位 38 岁的女性因超声显示颅后窝有囊性病变而被转介进行靶向胎儿超声检查。胎儿显示明显扩张的窦汇、双侧横窦和双侧乙状窦，在 3D 超声上呈现出一种新颖的牛角征。出生后，脑血管造影证实了枕窦区硬脑膜动静脉瘘（DAVF）的诊断。
结论
3D 超声是产前诊断硬脑膜窦动静脉畸形的一种有吸引力的方法。
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