blood disorders
Hereditary Hemorrhagic Telangiectasia (HHT)
Symptoms of HHT
Many people with hereditary hemorrhagic telangiectasia have abnormal connections between an artery and a vein ( Arteriovenous Fistula [AVM]). These abnormal connections can shunt blood away from some tissues, leaving them deprived of oxygen. For example, AVMs that develop in the brain or spinal cord may cause This photo shows a close-up of the face of a person with visible, tiny blood vessels (telangiectasias) caused by hereditary hemorrhagic telangiectasia. DR P. MARAZZI/SCIENCE PHOTO LIBRARY This photo shows visible, tiny blood vessels (telangiectasia) on the on the lips and tongue and around the mouth in this person with hereditary hemorrhagic telangiectasia. By permission of the publisher. From Deitcher S. In Atlas of Clinical Hematology. Edited by JO Armitage. Philadelphia, Current Medicine, 2004. DR P. MARAZZI/SCIENCE PHOTO LIBRARY 