title: Neuralgic Amyotrophy Manifesting as Mimicking Posterior Interosseous Nerve Palsy.
abstract: The upper trunk of the brachial plexus is the most common area affected by neuralgic amyotrophy (NA), and paresis of the shoulder girdle muscle is the most prevalent manifestation. Posterior interosseous nerve palsy is a rare presentation in patients with NA. It results in dropped finger on the affected side and may be misdiagnosed as entrapment syndrome or compressive neuropathy. We report an unusual case of NA manifested as PIN palsy and suggest that knowledge of clinical NA phenotypes is crucial for early diagnosis of peripheral nerve palsies.
authors.affiliation: Department of Neurosurgery, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University, Chuncheon, Korea.
authors.forename: Jin Seo
authors.initials: JS
authors.lastname: Yang
authors.affiliation: Department of Neurosurgery, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University, Chuncheon, Korea.
authors.forename: Yong Jun
authors.initials: YJ
authors.lastname: Cho
authors.affiliation: Department of Neurosurgery, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University, Chuncheon, Korea.
authors.forename: Suk Hyung
authors.initials: SH
authors.lastname: Kang
authors.affiliation: Department of Rehabilitation Medicine, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University, Chuncheon, Korea.
authors.forename: Eun Hi
authors.initials: EH
authors.lastname: Choi
keywords: Brachial plexus neuritis; Entrapment syndrome; Magnetic resonance neurography; Neuralgic amyotrophy; Posterior interosseous nerve