Ultrasonic diagnosis features of persistent median artery and median nerve double branch variation
Wang Hongjun1, Li Chaomi2, Zhang Heng2,Liu Kun2.
1College of Clinical Medicine, Jining Medical University, Jining 272013, China； 2Department of Ultrasound, Affiliated Hospital of Jining Medical University, Jining 272029, China
Abstract：ObjectiveTo investigate the ultrasonic diagnostic characteristics of persistent median artery and median nerve double branch variation. MethodsRetrospective analysis of the clinical and ultrasound image characteristics of 7 patients with persistent median artery and median nerve double branch variation treated at Ultrasound Department of the Affiliated Hospital of Jining Medical University between January 1, 2018, and December 31, 2022 was performed. Three of them were found surgically. The ultrasonic diagnostic characteristics of the persistent median artery and median nerve double branch variation were summarized. ResultsThe majority of the 7 patients′ clinical complaints were forearm or wrist pain and discomfort, frequently accompanied with radial finger numbness. The ultrasonic diagnostic characteristics were as follows: the forearm showed abnormal pulsating tubular anecho, accompanied by the median nerve, the median nerve changed into two bundles of hypoecho, and there was an independent hyperechoic outer nerve membrane, both of which entered the carpal tunnel in parallel, and the median nerve entrapment can be seen in the carpal tunnel, and the anteroposterior diameter of the compression site was 1.6mm-1.9mm，and the proximal middle nerve was swollen and enlarged, and the anteroposterior diameter increased to 2.8mm-3.5mm. Surgery on 3 patients revealed different degrees of median nerve entrapment in the carpal tunnel and confirmed that the median nerve had swollen during the procedure. The forearm segment was split into two branches that entered the carpal tunnel with the permanent median artery. ConclusionUltrasound examination of the persistent median artery and double branches of the median nerve has clear diagnostic characteristics, which has important guiding significance for clinical diagnosis.
王洪军1李朝密2张恒2刘鲲2. 永存正中动脉并正中神经双支变异的
超声诊断特征分析[J]. 中华诊断学电子杂志, 2023, 11(4): 244-248.
Wang Hongjun1, Li Chaomi2, Zhang Heng2,Liu Kun2.. Ultrasonic diagnosis features of persistent median artery and median nerve double branch variation. zhzdx, 2023, 11(4): 244-248.
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