Nerve Ultrasonography for the Diagnosis and Evaluation of Neuralgic Amyotrophy

Abstract

Neuralgic amyotrophy (NA) is a peripheral nervous system disorder involving multifocal distribution. Although nerve ultrasonography has shown potential for detecting NA lesions, no established detection method exists for distal forearm NA. A 59-year-old man presented with weakness of the muscles innervated by the left posterior interosseous nerve (PIN), median nerve (MN), anterior interosseous nerve (AIN), and ulnar nerve (UN), following severe left shoulder pain. This case suggests that nerve ultrasonography can help accurately diagnose distal forearm NA.

Distal peripheral nerves may be involved in Parsonage Turner syndrome

“…The study is appealing but raises concerns that should be discussed. We disagree with the diagnosis "distal form of neuralgic amyotrophy" [1] . The patient had not only distal forearm pain but also recurrent left shoulder pain, why the clinical presentation suggests proximal and distal neuralgic amyotrophy, also known as Parsonage Turner syndrome (PTS).…”

“…Incomplete recovery could be achieved after one year of follow-up [1] . It was concluded that nerve ultrasound can support the diagnosis of distal neuralgic amyotrophy [1] . The study is appealing but raises concerns that should be discussed.…”

“…We read with interest the article by Yamada et al . reporting on a 58 years-old male with left neuralgic amyotrophy including the shoulder and the forearm with an onset in July 2020, spontaneous, partial remission, and recurrence of symptoms in January 2021 [1] . The patient was also investigated by nerve ultrasound.…”

“…The patient was also investigated by nerve ultrasound. The patient benefited from intravenous immunoglobulins (IVIGs) [1] . Incomplete recovery could be achieved after one year of follow-up [1] .…”

“…The patient benefited from intravenous immunoglobulins (IVIGs) [1] . Incomplete recovery could be achieved after one year of follow-up [1] . It was concluded that nerve ultrasound can support the diagnosis of distal neuralgic amyotrophy [1] .…”