TY - JOUR T1 - Response to: ‘Paying attention to carpal tunnel contents lesions: ultrasound for evaluation of carpal tunnel syndrome’ by zhu and Liu JF - Annals of the Rheumatic Diseases JO - Ann Rheum Dis SP - e17 LP - e17 DO - 10.1136/annrheumdis-2013-205038 VL - 73 IS - 4 AU - Christian Dejaco AU - Martin Stradner AU - Dorothea Zauner AU - Werner Seel AU - Nicole Elisabeth Simmet AU - Alexander Klammer AU - Petra Heitzer AU - Kerstin Brickmann AU - Judith Gretler AU - Florentine Fürst-Moazedi AU - Rene Thonhofer AU - Rusmir Husic AU - Josef Hermann AU - Winfried B Graninger AU - Stefan Quasthoff Y1 - 2014/04/01 UR - http://ard.bmj.com/content/73/4/e17.abstract N2 - Our and several previous studies demonstrated a high diagnostic value of ultrasound for carpal tunnel syndrome (CTS).1 ,2 Among the various abnormalities within the carpal tunnel reported, the increase of the cross-sectional area (CSA) of the median nerve is the most commonly studied ultrasound abnormality.3 Additionally, ultrasound allows the identification of secondary causes of CTS, such as synovitis, tenosynovitis, calcified masses or tophaceous gout, as pointed out by zhu et al.4 We acknowledge that the diagnostic value of ultrasound is not perfect, as some patients may suffer from CTS despite a normal ultrasound result and, … ER -