TY - JOUR T1 - Sonographic Assessment of a Bifid Median Nerve and Median Artery in Carpal Tunnel Syndrome JF - The Journal of Rheumatology JO - J Rheumatol SP - 1694 LP - 1696 DO - 10.3899/jrheum.110036 VL - 38 IS - 8 AU - ANGEL CHECA AU - HUMAIRA HUSSAIN Y1 - 2011/08/01 UR - http://www.jrheum.org/content/38/8/1694.abstract N2 - Numerous variants of the median nerve in the carpal tunnel, such as a bifid morphology, have been reported1. The prevalence of bifid median nerve with or without a persistent median artery continues to be intriguing. However, a bifid nerve has been observed in patients with carpal tunnel syndrome (CTS). The nerve compression via trauma, dilatation, thrombosis, and arterial calcification is disputed2.An ultrasound scan in longitudinal and transverse planes at the volar aspect of both wrists, at the level of the carpal tunnel, was obtained in 3 patients. Scans were performed using a GE Logiq e ultrasound machine equipped with a broadband linear probe from 8 to 13 MHz.The first case, an 80-year-old woman with history of osteoarthritis of the hands, presented with tingling and numbness at the median nerve area in the right … ER -