Cordonal neuralgia is arare entity, usually stated as sciatica. The authors report a unique case of a 44-year-old man who presented with a short history of right cruralgia and sudden episodes of weakness in both lower limbs; neurological examination depicted superficial hypoesthesia with an upper level of T9 and right Babinski sign. Magnetic resonance imaging showed a large central disc herniation at the T11-T12 level. After surgical removal of the herniated disc, all the clinical symptoms and signs cleared. The pain production mechanism is discussed. It is concluded that thoracic disc herniation should be considered and excluded when patients present with cruralgia.
La neuralgia cordonal es una entidad poco frecuente, que generalmente se manifiesta en forma de ciática. Los autores presentan el caso de un paciente de 44 años de edad, con una historia de cruralgia de corta evolución, y episodios ocasionales de debilidad en ambos miembros inferiores de aparición súbita; la exploración neurológica descubrió una hipoestesia superficial, con un nivel metamérico T9, y un signo de Babinski derecho. La Resonancia Magnética (RM) mostró una gran hernia de disco central a nivel T11-T12. Tras la extirpación quirúrgica del disco herniado, todos los signos y síntomas desaparecieron. Se discute el mecanismo de producción del dolor. Concluímos que en pacientes con cruralgia, la hernia de disco torácica debe ser considerada y descartada.
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