title: Tarsal tunnel syndrome associated with a pulsating artery: effectiveness of high-resolution ultrasound in diagnosing tarsal tunnel syndrome.
abstract: We describe a patient with tarsal tunnel syndrome in whom ultrasound imaging revealed compression of the posterior tibial nerve by a pulsating artery. High-resolution ultrasound showed a round pulsating hypoechoic lesion in contact with the posterior tibial nerve. Ultrasound-guided injection of 0.5% lidocaine temporarily resolved the paresthesia. These findings suggest an arterial etiology of tarsal tunnel syndrome.
authors.affiliation: Korea Olympic Committee, Department of Sports Medicine & Science, Taereung National Training Center, Nowon-gu, Seoul, Republic of Korea. eunkuk.kim@gmail.com
authors.forename: Eunkuk
authors.initials: E
authors.lastname: Kim
authors.forename: Martin K
authors.initials: MK
authors.lastname: Childers
mesh_terms: D000368:Aged; D000842:Ankle / Q000098:blood supply* / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D011673:Pulsatile Flow / Q000502:physiology; D013641:Tarsal Tunnel Syndrome / Q000000981:diagnostic imaging / Q000209:etiology* / Q000503:physiopathology; D016909:Tibial Arteries / Q000002:abnormalities / Q000000981:diagnostic imaging* / Q000503:physiopathology; D018608:Ultrasonography, Doppler / Q000379:methods*; D054079:Vascular Malformations / Q000150:complications* / Q000000981:diagnostic imaging / Q000503:physiopathology