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Updated: Sep 13, 2025

Nerve Ultrasound Protocol to Detect Dysimmune Neuropathies
Published on: October 7, 2021
High-Resolution Ultrasound of Clinically Relevant Sensory Nerves of the Arm and the Forearm
Federico Zaottini1,2, Riccardo Picasso1, Federico Pistoia1
1Department of Radiology, IRCCS Ospedale Policlinico San Martino, Genova, Italy.
Abstract:
Technological advancements in ultrasound systems, particularly the development of high- and ultra-high-frequency transducers, now allow for the detailed evaluation of sub-millimetric sensory nerves in the upper limb, extending to their distal branches. This provides invaluable insights in patients with suspected neuropathies. This review aims to outline the scanning techniques and normal ultrasound appearance of cutaneous nerves of the upper limbs, including the medial cutaneous nerve of the arm, medial cutaneous nerve of the forearm, lateral cutaneous nerve of the forearm, and posterior cutaneous nerve of the forearm. Furthermore, several cases of nerve pathologies where ultrasound has played a crucial role in accurate diagnosis and therapeutic management are presented.
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