Parálisis diafragmática unilateral dolorosa como única manifestación de la neuralgia amiotrófica / Unilateral Painful Diaphragm Paralysis as the Only Sign of Amyotrophic Neuralgia

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(AU)

Amyotrophic neuralgia is an inflammatory and idiopathic neuropathy which is characterised by neuropathic pain. It was described for the first time in 1948 as condition that only affected the brachial plexus and was called Parsonage-Turner syndrome. Although this syndrome is more common in the brachial plexus, it can concomitantly, or in isolation affect the phrenic nerve, and in this case the diagnosis is very difficult if there is no high clinical suspicion.We present a case of a patient with amyotrophic neuralgia in which the only sign was left phrenic involvement, and we highlight the resistance of the pain to analgesics, as well as the persistence of the symptoms and diaphragm problems for over 6 months(AU)

[Unilateral painful diaphragm paralysis as the only sign of amyotrophic neuralgia]. / Parálisis diafragmática unilateral dolorosa como única manifestación de la neuralgia amiotrófica.

Amyotrophic neuralgia is an inflammatory and idiopathic neuropathy which is characterised by neuropathic pain. It was described for the first time in 1948 as condition that only affected the brachial plexus and was called Parsonage-Turner syndrome. Although this syndrome is more common in the brachial plexus, it can concomitantly, or in isolation affect the phrenic nerve, and in this case the diagnosis is very difficult if there is no high clinical suspicion. We present a case of a patient with amyotrophic neuralgia in which the only sign was left phrenic involvement, and we highlight the resistance of the pain to analgesics, as well as the persistence of the symptoms and diaphragm problems for over 6 months.