Relationships Between Nerve Ultrasound Findings and Clinical, Genetic, Laboratory and Electrophysiological Findings in Patients With Chronic Idiopathic Axonal Polyneuropathy

This exploratory study supports a role for ultrasound in the differential diagnosis of CIAPs: reduced CSAs of upper limb nerves suggest inherited sensory neuronopathy, whereas increased CSAs make inherited sensory neuronopathy unlikely and, in combination with obesity, suggest metabolic neuropathy. Larger confirmatory studies are needed.