Lobar intracerebral hemorrhage

Injury	Disease	Nutrition	Poison

Symptoms	Surgery	Test	Special Topic

Arteries of the brain

Overview

Symptoms

Treatment

Prevention

Lobar intracerebral hemorrhage

Definition:

Lobar intracerebral hemorrhage involves bleeding in the brain. The bleeding (hemorrhage) is isolated to one specific area of the brain, somewhere in the white matter portion of the cerebrum. (The cerebrum is the large part of the brain consisting of two hemispheres of 4 lobes each.)

Alternative Names:

Hemorrhage - intraparenchymal; Hemorrhage - intracerebral (lobar)

Causes, incidence, and risk factors:

Lobar intracerebral hemorrhage may be caused by a traumatic brain injury or abnormalities of the blood vessels, such as aneurysm, arteriovenous malformation, or angioma (tumors involving blood vessels). When it is not caused by trauma, lobar intracerebral hemorrhage can be considered a type of stroke.

A lobar hemorrhage can be associated with amyloid deposits in the blood vessels (amyloid angiopathy). In some patients, using blood thinners may result in a lobar hemorrhage. Brain tumors or, in rare cases, infections can also lead to bleeding in the brain. In some cases, no cause can be found.

Lobar hemorrhages are also associated with the following:

Various blood or bleeding disorders, such as disseminated intravascular coagulation, hemophilia, sickle cell anemia, and leukemia.
Decreased levels of blood platelets
Use of aspirin or blood thinners
Liver disease (associated with increased bleeding risk)
Cerebral amyloid
Some autoimmune disorders

Review Date: 7/24/2004
Reviewed By: Luc D. Jasmin, MD, PhD, Department of Neurological Surgery, University of California, San Francisco, CA. Review provided by VeriMed Healthcare Network.

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