3-rx.comCustomer Support
HomeAbout UsFAQContactHelp
News Center
Health Centers
Medical Encyclopedia
Drugs & Medications
Diseases & Conditions
Medical Symptoms
Med. Tests & Exams
Surgery & Procedures
Injuries & Wounds
Diet & Nutrition
Special Topics

\"$alt_text\"');"); } else { echo"\"$alt_text\""; } ?>

You are here : 3-RX.com > Medical Encyclopedia > Diseases and Conditions > Brain Herniation
      Category : Health Centers > Brain and Nervous System

Brain Herniation

Alternate Names : Tentorial Herniation

Overview, Causes, & Risk Factors | Symptoms & Signs | Diagnosis & Tests | Prevention & Expectations | Treatment & Monitoring

A brain herniation occurs when a part of the brain pushes downward inside the skull through the opening that leads into the neck.

What is going on in the body?

The brain is supported within the skull by a horseshoe-shaped piece called the tentorium. There is an opening in the tentorium where the brainstem connects to the brain. This is where most herniations occur.

Conditions that cause swelling in the brain or increased pressure in the skull can cause brain tissue to be pushed into this opening. This is called a herniation. For instance, if there is a mass, such as a tumor, in the head, the brain will swell. Since the skull is rigid, swelling will force the brain into the area of least resistance. This would be the hole in the center of the tentorium. The swelling may result in the brain shifting from its usual position to an abnormal position in the skull.

What are the causes and risks of the condition?

Anything that causes swelling in the brain might lead to herniation. Some common causes include:

  • bleeding in the brain. Examples of bleeding in the brain are epidural hematoma, subdural hematoma, or subarachnoid hemorrhage.
  • brain tumor
  • head injury from a blow to the head or other trauma
  • stroke
  • Brain herniation can cause severe brain damage or even death. The brain tissue that is being squeezed through the opening and the brainstem tissue can be permanently damaged. The ability to breathe, keep the heart beating, be alert, and think can all be damaged.


    Next section


    Brain Herniation: Symptoms & Signs

    Author: James Warson, MD
    Reviewer: Karen Preston, PHN, MS, CRRN
    Date Reviewed: 10/03/01

    \"$alt_text\"');"); } else { echo"\"$alt_text\""; } ?>

    Home | About Us | FAQ | Contact | Advertising Policy | Privacy Policy | Bookmark Site