Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Ventricular Enlargement

  • Adam ConleyEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_375

Synonyms

Ventriculomegaly

Definition

Ventricular enlargement is a brain condition that occurs when the lateral ventricles become dilated.

Current Knowledge

Ventricular enlargement is a brain condition that occurs when the lateral ventricles become dilated. The most common definition uses a volume to brain index value derived from MRI and CT reconstruction of the lateral and third ventricles.

Enlargement of the ventricles may occur for a number of reasons, such as loss of brain volume (due to conditions such as cortical atrophy, traumatic brain injury, or cerebral vascular accident), impaired outflow, or absorption of cerebrospinal fluid from the ventricles. Often, however, there is no identifiable cause. The interventricular foramen may be congenitally malformed, or may have become obstructed by infection, hemorrhage, or rarely by tumor, which may impair the drainage of cerebrospinal fluid, and thus accumulation in the ventricles.

In neonatal patients, this diagnosis is generally found...

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Virginia Commonwealth University Medical CenterRichmondUSA