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. 2022 Apr 6;32(1):16–29. doi: 10.1055/s-0041-1741088

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Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ )

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 16 — Illustrative cases: Case 1: A 46-year-old male with moderate carpal tunnel syndrome in nerve conduction study. Ultrasonography showed flexor tenosynovitis displacing the median nerve and thickening of the flexor retinaculum. Median nerve was normal proximal to the carpal tunnel. CSA 1, cross-sectional area 1; FD, flexor digitorum; MN, median nerve.