Figure 9 (A-D).

Giant Virchow-Robbin spaces. A 53-year-old female patient presented with headache, giddiness, and gait unsteadiness for 2 years. T2W axial (A) and coronal (B) images show a multicystic mass (arrow) extending along the right cerebral peduncle to the midbrain. Also, note the hydrocephalus with obstruction at the level of the posterior third ventricle. CISS axial images (C,D) clearly show the intraventricular component of the cystic lesion (arrow) to be the cause of the hydrocephalus