Neuralgic Amyotrophy and Hourglass Nerve Constriction/Nerve Torsion: Two Sides of the Same Coin? A Clinical Review

Neuralgic amyotrophy, also called Parsonage–Turner syndrome, in its classic presentation is a brachial plexopathy or a multifocal neuropathy, involving mainly motor nerves of the upper limb with a monophasic course. Recently, a new radiological entity was described, the hourglass constriction, which...

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Main Authors: Giuseppe Granata, Fabiola Tomasello, Maria Ausilia Sciarrone, Vito Stifano, Liverana Lauretti, Marco Luigetti
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/14/1/67
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author Giuseppe Granata
Fabiola Tomasello
Maria Ausilia Sciarrone
Vito Stifano
Liverana Lauretti
Marco Luigetti
author_facet Giuseppe Granata
Fabiola Tomasello
Maria Ausilia Sciarrone
Vito Stifano
Liverana Lauretti
Marco Luigetti
author_sort Giuseppe Granata
collection DOAJ
description Neuralgic amyotrophy, also called Parsonage–Turner syndrome, in its classic presentation is a brachial plexopathy or a multifocal neuropathy, involving mainly motor nerves of the upper limb with a monophasic course. Recently, a new radiological entity was described, the hourglass constriction, which is characterized by a very focal constriction of a nerve, or part of it, usually associated with nerve thickening proximally and distally to the constriction. Another condition, which is similar from a radiological point of view to hourglass constriction, is nerve torsion. The pathophysiology of neuralgic amyotrophy, hourglass constriction and nerve torsion is still poorly understood, and a generic role of inflammation is proposed for all these conditions. It is now widely accepted that nerve imaging is necessary in identifying hourglass constrictions/nerve torsion pre-surgically in patients with an acute mononeuropathy/plexopathy. Ultrasound and MRI are useful tools for diagnosis, and they are consistent with intraoperative findings. The prognosis is generally favorable after surgery, with a high rate of good motor recovery.
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spelling doaj.art-4e66ea7c8a5e4b8695b243f29e09f4df2024-01-26T15:24:47ZengMDPI AGBrain Sciences2076-34252024-01-011416710.3390/brainsci14010067Neuralgic Amyotrophy and Hourglass Nerve Constriction/Nerve Torsion: Two Sides of the Same Coin? A Clinical ReviewGiuseppe Granata0Fabiola Tomasello1Maria Ausilia Sciarrone2Vito Stifano3Liverana Lauretti4Marco Luigetti5Dipartimento di Neuroscienze, Organi di Senso e Torace, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, ItalyDipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, ItalyDipartimento di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, ItalyDipartimento di Neuroscienze, Organi di Senso e Torace, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, ItalyDipartimento di Neuroscienze, Organi di Senso e Torace, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, ItalyDipartimento di Neuroscienze, Organi di Senso e Torace, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, ItalyNeuralgic amyotrophy, also called Parsonage–Turner syndrome, in its classic presentation is a brachial plexopathy or a multifocal neuropathy, involving mainly motor nerves of the upper limb with a monophasic course. Recently, a new radiological entity was described, the hourglass constriction, which is characterized by a very focal constriction of a nerve, or part of it, usually associated with nerve thickening proximally and distally to the constriction. Another condition, which is similar from a radiological point of view to hourglass constriction, is nerve torsion. The pathophysiology of neuralgic amyotrophy, hourglass constriction and nerve torsion is still poorly understood, and a generic role of inflammation is proposed for all these conditions. It is now widely accepted that nerve imaging is necessary in identifying hourglass constrictions/nerve torsion pre-surgically in patients with an acute mononeuropathy/plexopathy. Ultrasound and MRI are useful tools for diagnosis, and they are consistent with intraoperative findings. The prognosis is generally favorable after surgery, with a high rate of good motor recovery.https://www.mdpi.com/2076-3425/14/1/67hourglass-like constrictionnerve torsionneuralgic amyotrophyradial nerve palsyanterior interosseous nerve palsyposterior interosseous nerve palsy
spellingShingle Giuseppe Granata
Fabiola Tomasello
Maria Ausilia Sciarrone
Vito Stifano
Liverana Lauretti
Marco Luigetti
Neuralgic Amyotrophy and Hourglass Nerve Constriction/Nerve Torsion: Two Sides of the Same Coin? A Clinical Review
Brain Sciences
hourglass-like constriction
nerve torsion
neuralgic amyotrophy
radial nerve palsy
anterior interosseous nerve palsy
posterior interosseous nerve palsy
title Neuralgic Amyotrophy and Hourglass Nerve Constriction/Nerve Torsion: Two Sides of the Same Coin? A Clinical Review
title_full Neuralgic Amyotrophy and Hourglass Nerve Constriction/Nerve Torsion: Two Sides of the Same Coin? A Clinical Review
title_fullStr Neuralgic Amyotrophy and Hourglass Nerve Constriction/Nerve Torsion: Two Sides of the Same Coin? A Clinical Review
title_full_unstemmed Neuralgic Amyotrophy and Hourglass Nerve Constriction/Nerve Torsion: Two Sides of the Same Coin? A Clinical Review
title_short Neuralgic Amyotrophy and Hourglass Nerve Constriction/Nerve Torsion: Two Sides of the Same Coin? A Clinical Review
title_sort neuralgic amyotrophy and hourglass nerve constriction nerve torsion two sides of the same coin a clinical review
topic hourglass-like constriction
nerve torsion
neuralgic amyotrophy
radial nerve palsy
anterior interosseous nerve palsy
posterior interosseous nerve palsy
url https://www.mdpi.com/2076-3425/14/1/67
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