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We read with great interest the report by Dejaco et al1 related to diagnosis of carpal tunnel syndrome (CTS) by ultrasound. Dejaco et al compared ultrasound measurement of median nerve cross-sectional area (CSA) at different anatomical landmarks in great detail and evaluated the value of intranerval power Doppler signals for CTS diagnosis. It provided a good data support for the ultrasonic evaluation of CTS. However, this study prompts questions on the three following points:
CSA as an important indicator for CTS diagnosis also has limitations. We do agree that CSA is the most commonly used for evaluation of nerve swelling. …
Contributors Jz: concept, writing; FL: writing.
Competing interests None.
Provenance and peer review Not commissioned; internally peer reviewed.
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