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Vol. 46. Issue 7.
Pages 390-392 (July 2010)
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Vol. 46. Issue 7.
Pages 390-392 (July 2010)
Clinical Note
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Unilateral Painful Diaphragm Paralysis as the Only Sign of Amyotrophic Neuralgia
Parálisis diafragmática unilateral dolorosa como única manifestación de la neuralgia amiotrófica
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Marina Blanco-Aparicioa,
Corresponding author
mba@mundo-r.com

Corresponding author.
, Carmen Montero-Martíneza, Dolores Couto-Fernándezb, Berta Pernasa, María Fernández-Marrubea, Héctor Verea-Hernandoa
a Servicio de Neumología, Complejo Hospitalario Universitario, A Coruña, Spain
b Servicio de Neurología, Complejo Hospitalario Universitario, A Coruña, Spain
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Abstract

Amyotrophic neuralgia is an inflammatory and idiopathic neuropathy characterised by neuropathic pain. It was first described in 1948 as an affectation of just the brachial plexus and was called Parsonage-Turner syndrome. Although this syndrome is more frequent in the brachial plexus, it may affect concomitantly or in isolation the phrenic nerve, which diagnosis is particularly difficult without high clinical suspicion.

We present a patient with amyotrophic neuralgia whose only manifestation was left phrenic nerve involvement, and we highlight the resistance of the pain to analgesics, as well as the persistence of the symptoms and diaphragm problems for more than six months.

Keywords:
Neuropathy
Amyotrophic neuralgia
Diaphragmatic paralysis
Phrenic nerve
Resumen

La neuralgia amiotrófica es una neuropatía inflamatoria e idiopática que se caracteriza por dolor neuropático. Se describió por primera vez en 1948 como una afectación sólo del plexo braquial y se denominó síndrome de Parsonage-Turner. Aunque este síndrome es más frecuente en el plexo braquial, puede afectar de forma concomitante o aislada al nervio frénico, y en esta circunstancia el diagnóstico es muy difícil si no hay alta sospecha clínica.

Presentamos el caso de un paciente con neuralgia amiotrófica cuya única manifestación fue la afectación frénica izquierda, y destacamos la refractariedad del dolor a los analgésicos, así como la persistencia de los síntomas y de la alteración diafragmática durante más de 6 meses.

Palabras clave:
Neuropatía
Neuralgia amiotrófica
Parálisis diafragmática
Nervio frénico
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