case_images: PMC10350811_01
case_images: a Humphrey 24-2 SITA-Fast visual field testing showing a left superior homonymous quadrantanopia. b MRI FLAIR (left) and T2 demonstrating a 2.0 x 0.5-cm oblong-shaped cerebrospinal fluid-filled space posterior to the right basal ganglia, just above the temporal horn of the lateral ventricle, which courses close to the expected location of the lateral genicular body. A thin rim of FLAIR hyperintensity is noted at the margin of the lesion. This was thought to represent a giant Virchow-Robin space.
case_images: cop-2023-0014-0001-525899_F01.jpg
case_images: PMC10350811_01_cop-2023-0014-0001-525899_F01.jpg
case_images: F1
case_images: Humphrey 24-2 SITA-Fast visual field testing revealed a left superior homonymous quadrantanopia (shown in Fig. 1a). Magnetic resonance imaging of the brain was performed and showed a 2.0 x 0.5-cm oblong-shaped cerebrospinal fluid space posterior to the right basal ganglia, which coursed close to the expected location of the lateral geniculate body (shown in Fig. 1b).