Lobar intracerebral hemorrhage is bleeding in the largest part of the brain called the cerebrum.

Hemorrhage - intraparenchymal; Hemorrhage - intracerebral (lobar)

Lobar intracerebral hemorrhage (ICH) may be caused by:

• Angioma, a type of blood vessel tumor
• Bleeding into a tumor
• Blood clotting problems
• Blood vessel problems such as aneurysm or arteriovenous malformation
• Head injury (trauma)

In some cases, no cause can be found.

When it is not caused by trauma, lobar ICH is considered a type of hemorrhagic stroke, the most serious type of stroke.

Lobar ICH is associated with the apolipoprotein (apo) E gene, which is linked to an increased risk for Alzheimer's disease.

Lobar hemorrhages are also associated with the following:

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

Images

Arteries of the brain

Next Section

Lobar intracerebral hemorrhage Symptoms

Review Date: 09/13/2008
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)