Presence of palinopsia as a sign of selective CNS tractopathy: A case report

• Elnaz Asadollahzadeh ^[1] ; Vahid Shahmaei ^[2] ; Rezvan Hassanpour ^[1] ; Zahra Ebadi ^[1] ; Mohammad Ali Sahraian ^[1] ; Abdorreza Naser Moghadasi ^[1]
  1. [1] Tehran University of Medical Sciences

     Tehran University of Medical Sciences

     Irán

     
  2. [2] Shahid Beheshti University of Medical Sciences

     Shahid Beheshti University of Medical Sciences

     Irán

     
• Localización: Revista Científica de la Sociedad Española de Enfermería Neurológica: SEDENE, ISSN 2013-5246, ISSN-e 2173-9153, Nº. 60 (julio-diciembre), 2024
• Idioma: inglés
• DOI: 10.1016/j.sedene.2023.12.001
• Títulos paralelos:
  • Presencia de palinopsia como signo de tractopatía selectiva del SNC: reporte de un caso
• Enlaces
  • Texto completo
• Resumen
  • español

    La palinopsia, descrita como la persistencia de imágenes visuales o su reaparición después de que el estímulo haya desaparecido, representa una complicación neuro-oftalmológica rara pero importante. Hasta ahora, la fisiopatología y la principal ubicación de esta condición de mantenimiento visual no se han comprendido de manera clara. Este estudio presenta el caso de una mujer de 30 años con palinopsia, cuya lesión selectiva de radiación óptica fue evaluada mediante imágenes de tensor de difusión (DTI).

    La resonancia magnética (MRI) no reveló ningún daño en la vía óptica selectiva, mientras que el DTI mostró una disminución en la densidad del tracto de la radiación óptica. Además, la difusividad media (MD), la difusividad axial (AD) y la difusividad radial (RD) aumentaron en regiones sospechosas de lesiones ds, mientras que la anisotropía fraccional (FA) disminuyó. Según el conocimiento de los autores, este es el primer informe de un caso de palinopsia que representa una tractopatía del sistema nervioso central (CNS); por lo tanto, fomentamos una investigación adicional de la patología de la vía óptica utilizando la DTI en complicaciones neurológicas complejas, incluyendo la palinopsia.

  • English

    Palinopsia, described as the persistence of visual images or their recurrence after the stimulus has disappeared, represents a rare but important neuro-ophthalmic complication. Until now, the pathophysiology and the main location of this visual mainteanance condition are not been clearly understood. This study presents a 30-year-old woman with palinopsia who had her selective optic radiation lesion assessed by diffusion tensor imaging (DTI). The finding of magnetic resonance imaging (MRI) did not reveal any damage in the selective optic pathway whereas DTI showed a decreased density of the optic radiation tract. Furthermore, the mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity (RD) were increased in suspected regions of lesions ds, while fractional anisotropy (FA) was decreased. To the authors’ knowledge, this is the first report of a case of palinopsia representing the central nervous system (CNS) tractopathy. Therefore, we encourage further investigation of optic pathway pathology using DTI in complex neurological complications, including palinopsia.

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