Definition : Excessive accumulation of cerebrospinal fluid within the cranium which may be associated
with dilation of cerebral ventricles, intracranial hypertension; headache; lethargy;
urinary incontinence; and ataxia (and in infants macrocephaly). This condition may
be caused by obstruction of cerebrospinal fluid pathways due to neurologic abnormalities,
intracranial hemorrhages; central nervous system infections; brain neoplasms; craniocerebral
trauma; and other conditions. Impaired resorption of cerebrospinal fluid from the
arachnoid villi results in a communicating form of hydrocephalus. Hydrocephalus ex-vacuo
refers to ventricular dilation that occurs as a result of brain substance loss from
cerebral infarction and other conditions. [MeSH];
Excessive accumulation of cerebrospinal fluid within the cranium which may be associated
with dilation of cerebral ventricles, intracranial hypertension; headache; lethargy;
urinary incontinence; and ataxia (and in infants macrocephaly). This condition may
be caused by obstruction of cerebrospinal fluid pathways due to neurologic abnormalities,
intracranial hemorrhages; central nervous system infections; brain neoplasms; craniocerebral
trauma; and other conditions. Impaired resorption of cerebrospinal fluid from the
arachnoid villi results in a communicating form of hydrocephalus. Hydrocephalus ex-vacuo
refers to ventricular dilation that occurs as a result of brain substance loss from
cerebral infarction and other conditions. [MeSH]