• Yi Mao, Li Chen, and Zhi-Xing Liu.
• Department of Ultrasonography, The First Affiliated Hospital of Nanchang University, Nanchang, China.
• Medicine (Baltimore). 2024 Sep 13; 103 (37): e39125e39125.

RationalePersistent sciatic artery (PSA) is a rare congenital vascular anomaly. The sciatic artery, which normally regresses to become the inferior gluteal artery during fetal development, persists as a direct branch of the internal iliac artery.Patient ConcernWe report a 78-year-old female who was admitted due to sudden pain, numbness, and loss of sensation in the right lower limb.DiagnosesAcute thromboembolism in the right leg, bilateral PSA, and bilateral aneurysm.InterventionsAfter the super-selective embolization, lower limb arterial thrombolysis treatment was performed. After symptom relief, a computed tomography angiography was conducted to clarify the vascular variations.OutcomesAfter relief of lower limb embolism, long-term antiplatelet therapy was administered.LessonsWhen performing an ultrasound examination of PSA, careful identification of the arterial anatomy, evaluation of blood flow, assessment of surrounding structures, comparison between sides, and correlation with clinical symptoms are crucial to accurately diagnose this rare vascular anomaly.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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