Anisocoria como manifestación inicial de esclerosis múltiple. Utilidad de la resonancia magnética nuclear de 3 teslas / Anisocoria as initial manifestation of multiple sclerosis. Use of 3 tesla magnetic resonance imaging

Mujer de 21 años que presenta midriasis arreactiva en ojo derecho que contrae con el test de pilocarpina al 1%. La angio-TC craneal y la resonancia magnética nuclear (RMN) de 1,5 T no detectaron anomalías. Ante una posterior limitación de la aducción, supraducción e infraducción de dicho ojo, se solicitó una RMN de 3 T, que evidenció una lesión del mesencéfalo en la salida del tercer par craneal. Tras mejoría, no tuvo nuevos episodios hasta 18 meses después, cuando acudió con una probable neuritis óptica y síntomas sistémicos. En este momento la RMN de 1,5 T detectó placas desmielinizantes infratentoriales y supratentoriales. La punción lumbar posterior y la evolución clínica confirmaron el diagnóstico de esclerosis múltiple recurrente-remitente

A 21-year-old woman seen in this clinic with non-reactive mydriasis in the right eye that contracted with 1% pilocarpine. Cranial angio-CT and 1.5 T magnetic resonance imaging (MRI) did not detect any disease. Given a subsequent limitation of adduction, supraduction, and infarction of the right eye, a 3 T MRI was requested. This showed a lesion of the midbrain at the exit of the 3rd cranial nerve. After improvement, no new episodes were observed until 18 months later, when the patient presented with probable optic neuritis and systemic symptoms. At this time the 1.5 T MRI detected infratentorial and supratentorial demyelinating plaques. A subsequent lumbar puncture and clinic outcome confirmed the diagnosis of relapsing-remitting multiple sclerosis

Anisocoria as initial manifestation of multiple sclerosis. Use of 3 tesla magnetic resonance imaging. / Anisocoria como manifestación inicial de esclerosis múltiple. Utilidad de la resonancia magnética nuclear de 3 teslas.

A 21-year-old woman seen in this clinic with non-reactive mydriasis in the right eye that contracted with 1% pilocarpine. Cranial angio-CT and 1.5 T magnetic resonance imaging (MRI) did not detect any disease. Given a subsequent limitation of adduction, supraduction, and infarction of the right eye, a 3 T MRI was requested. This showed a lesion of the midbrain at the exit of the 3rd cranial nerve. After improvement, no new episodes were observed until 18 months later, when the patient presented with probable optic neuritis and systemic symptoms. At this time the 1.5 T MRI detected infratentorial and supratentorial demyelinating plaques. A subsequent lumbar puncture and clinic outcome confirmed the diagnosis of relapsing-remitting multiple sclerosis.