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Lobar intracerebral hemorrhage

Definition:
Lobar intracerebral hemorrhage involves bleeding in a localized area of the brain near its outer surfaces (cerebrum).

Alternative Names:
Hemorrhage - intraparenchymal; Hemorrhage - intracerebral (lobar)

Causes, incidence, and risk factors:

Lobar intracerebral hemorrhage occurs when there is bleeding in the white matter of the cerebrum (part of the brain).

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

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

Risks for lobar intracerebral hemorrhage, in addition to the causative disorders listed above, include the following:



Review Date: 7/31/2002
Reviewed By: Joseph V. Campellone, M.D., Division of Neurology, Cooper Hospital/University Medical Center, Camden, NJ. Review provided by VeriMed Healthcare Network.

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