Parsonage-Turner Syndrome: A Comprehensive Clinical Review

<p><b>Parsonage-Turner syndrome</b>, also known as <b>neuralgic amyotrophy</b>, is a frequently misdiagnosed peripheral nerve disorder characterized by <b>sudden, intense shoulder pain</b> followed by <b>muscle weakness and atrophy</b>. While historically considered a rare and temporary condition, contemporary research reveals it is far more prevalent and can cause <b>long-term disability</b> and persistent fatigue. The condition is believed to be <b>immune-mediated</b>, often triggered by infections, physical trauma, or genetic predispositions, specifically involving the <b>SEPT9 mutation</b>. Diagnosis is primarily clinical but is increasingly supported by <b>advanced imaging</b>, such as ultrasound and MRI, which can detect unique <b>nerve constrictions</b>. While <b>corticosteroids</b> may offer early pain relief, long-term management focuses on <b>specialized rehabilitation</b> and, in severe cases, <b>surgical intervention</b> to address structural nerve damage. These updated insights emphasize that <b>early recognition</b> is vital for improving patient outcomes and preventing chronic functional loss.</p><p>This episode is based on a paper written exclusively for the Weekly Neurology Deep Dive Podcast by Amer A. Ghavanini MD PhD FRCPC.</p>