Skip to main content Accessibility help
×
Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-05T12:04:48.295Z Has data issue: false hasContentIssue false

25 - Chiari malformation and hydrocephalus in adults

from Section 5 - Associated conditions

Published online by Cambridge University Press:  05 February 2014

Daniele Rigamonti
Affiliation:
The Johns Hopkins University School of Medicine
Get access

Summary

The development of magnetic resonance imaging (MRI) has led to an improved understanding of cerebellar herniation. The original studies of Hans Chiari dealt with four types of cerebellar malformation in these autopsy studies. These four types represent completely different pathologies. The Chiari III malformation and Chiari IV malformation (cerebellar agenesis) are extremely rare and are unlikely to be seen in the adult population. Chiari I and Chiari II are now frequently cared for in adult settings. Chiari I malformation is a crowding of the posterior fossa with tissue primarily derived from the inferior-most part of the cerebellar hemispheres, generally called the cerebellar tonsils. The radiographic appearance of the Chiari II malformation is much improved and the incidence of hydrocephalus that needs to be shunted falls to a minority of patients. The most likely situation in which Chiari I malformation and pseudotumor will coexist occurs in the context of morbid obesity.
Type
Chapter
Information
Adult Hydrocephalus , pp. 291 - 295
Publisher: Cambridge University Press
Print publication year: 2014

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Save book to Kindle

To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Available formats
×

Save book to Dropbox

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.

Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

Available formats
×