RT Book, Section A1 Ullrich, Nicole J. A2 Rudolph, Colin D. A2 Rudolph, Abraham M. A2 Lister, George E. A2 First, Lewis R. A2 Gershon, Anne A. SR Print(0) ID 7056928 T1 Chapter 553. Hydrocephalus and Pseudotumor Cerebri T2 Rudolph's Pediatrics, 22e YR 2011 FD 2011 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-149723-7 LK accesspediatrics.mhmedical.com/content.aspx?aid=7056928 RD 2024/04/18 AB Hydrocephalus is a condition in which there is an accumulation of cerebrospinal fluid (CSF) within the ventricles, leading to increased intracranial pressure. Hydrocephalus may be caused by increased production, decreased absorption, or obstruction to flow of CSF. By contrast, ventricular dilatation due to loss of brain tissue or atrophy is not considered to be hydrocephalus.