Selective Fascicular Involvement of the Median Nerve Trunk Causing Pseudo-Anterior Interosseous Nerve Syndrome: Ultrasound and MR Imaging Features.
Yonsei Med J
; 61(6): 547-552, 2020 Jun.
Article
em En
| MEDLINE
| ID: mdl-32469179
ABSTRACT
Fascicular involvement of the median nerve trunk in the upper arm is uncommon in cases of peripheral neuropathy, and its symptoms are consistent with those of anterior interosseous nerve (AIN) syndrome. We report three cases of focal anterior interosseous fascicular involvement in the median nerve trunk presenting as AIN palsy. Our report emphasizes the unique ultrasonographic and magnetic resonance imaging (MRI) features of swelling, hourglass-like constriction and torsion, and entwinement of the nerve fascicle of the dorsal region of the median nerve, which were confirmed surgically. On MRI, all patients showed denervation changes in the AIN territory, as well as in the median nerve territory, without compressing structures.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Imageamento por Ressonância Magnética
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Ultrassonografia
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Doenças do Sistema Nervoso Periférico
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Fáscia
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Nervo Mediano
Tipo de estudo:
Diagnostic_studies
Limite:
Adult
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Yonsei Med J
Ano de publicação:
2020
Tipo de documento:
Article