MRI demonstrates obstructive non-communicating hydrocephalus. (A) Both lateral and third ventricles are abnormally dilated; (B) The fourth ventricle appears to be of normal dimensions; (C) Residual orbital mass of the right eye could also be noted. Periventricular lucency around both lateral ventricles was also documented on the axial T2 weighted images. Based on the flow-void artifacts, a prominent and dilated vascular structure was detected, running anteriorly posteriorly through the mesencephalon and the aqueduct of Sylvius (E, F, red arrows).

  Part of: Bogovski S, Sirakova K, Sirakov A, Vladev G, Sirakov S (2022) Developmental venous anomaly causing obstructive hydrocephalus due to aqueductal stenosis: а case report. Folia Medica 64(5): 829-833.