RT Book, Section
A1 Wells, Robert G.
SR Print(0)
ID 1148948749
T1 Hydrocephalus
T2 Diagnostic Imaging of Infants and Children
YR 2015
FD 2015
PB McGraw-Hill Education
PP New York, NY
SN 9780071808392
LK accesspediatrics.mhmedical.com/content.aspx?aid=1148948749
RD 2024/04/19
AB Hydrocephalus  refers  to  abnormal  dilation  of  the  ventricular  system  in  association  with  narrowing  of  the  subarachnoid  spaces.  Elevation  of  the  intraventricular  pressure  may  or  may  not  be  present.  Hydrocephalus  is  not  synonymous  with  ventriculomegaly.  Most  forms  of  hydrocephalus  are  due  to  an  imbalance  between  the  formation  and  absorption  of  cerebrospinal  fluid,  that  is,  inadequate  passage  of  cerebrospinal  fluid  (CSF)  from  its  point  of  production  within  the  ventricular  system  to  its  point  of  absorption  into  the  systemic  circulation.  The  excess  intraventricular  CSF  that  results  from  this  imbalance  in  turn  causes  an  increase  in  intracranial  pressure.  The  degree  and  pattern  of  enlargement  of  the  CSF  pathways  and  the  amount  of  damage  to  central  nervous  system  (CNS)  structures  depend  on  both  the  severity  and  the  pathogenesis  of  the  hydrocephalus.1–3