 As for the spinal cord involvement, pyramidal signs in the limbs, sensory level dysfunction, and, commonly, sphincter dysfunction may be observed.Some of the symptoms are less common such as stroke (1.5%), epilepsy (2.2–5%), brain tumor, movement disorder, acute meningeal syndrome, and optic neuropathy.Because Non-parenchymal NBD targets vascular structures, the symptoms arise in the same area.