case_images: PMC3816070_01
case_images: ((a)-(d)) Contrast-enhanced cerebral MRI showing diffuse enhancement of the left optic nerve at onset ((a), axial T1; (b), coronal T1) and at 2 months followup ((c), axial T1_SE_FSAT; (d) coronal T1_SE_FSAT). ((e)-(f)) Cerebrospinal fluid cytology showing atypical epithelial cells aggregates.
case_images: NRI2013-892523.001.jpg
case_images: PMC3816070_01_NRI2013-892523.001.jpg
case_images: fig1
case_images: She underwent contrast-enhanced cerebral MRI showing nonspecific signal alteration involving frontal subcortical and periventricular white matter and focal contrast enhancement involving the left optic nerve sheath (see Figure 1). Citology was positive for atypical epithelial cells (see Figure 1).
case_images: Visual evoked potentials (VEPs) at onset ((a), (b)) and at two months follow-up ((c), (d)). (a)-(b): Response at 15 (a) and 30 (b) sec showing destructured response, reduced amplitude and prolonged latency on the left and normal response on the right side. (c)-(d): Response at 15 (c) and 30 (d) sec revealing absent response on the left and destructured response with normal amplitude and latency on the right side.
case_images: NRI2013-892523.002.jpg
case_images: PMC3816070_01_NRI2013-892523.002.jpg
case_images: fig2
case_images: VEP revealed destructured response, reduced amplitude, and prolonged latency on the left (see Figure 2). Brainstem auditory-evoked potentials were normal on the left (see Figure 2) and audiological evaluation evidenced mild neurosensorial failure more evident on the right. VEP revealed absent response on the left and destructured response with normal amplitude and latency on the right (see Figure 2).