obsolete_internal carotid artery stenosis true Carotid stenosis is a narrowing or constriction of the inner surface (lumen) of the carotid artery, usually caused by atherosclerosis. The internal carotid artery supplies the brain. Plaque often builds up at that division, and causes a narrowing (stenosis). Pieces of plaque can break off and block the small arteries above in the brain, which causes a stroke. Plaque can also build up at the origin of the carotid artery at the aorta. Tomasz Adamusiak SNOMEDCT:233964008 Replaced by Mondo term MONDO_0005189, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0005189 ICA - Internal carotid artery stenosis MedDRA:10081244 http://purl.obolibrary.org/obo/MONDO_0005189 3.88.0 Wikipedia:Carotid_artery_stenosis Internal carotid artery stenosis (disorder) Ele Holloway Sirarat Sarntivijai