Bronchial stenosis CT.JPG
CT scan of a bronchial stenosis (arrow) that resulted from tracheobronchial injury
Classification and external resources

A stenosis is an abnormal narrowing in a blood vessel or other tubular organ or structure. It is also sometimes called a stricture (as in urethral stricture).[3]

Stricture as a term is usually used when narrowing is caused by contraction of smooth muscle (e.g., achalasia, prinzmetal angina); stenosis is usually used when narrowing is caused by lesion that reduces the space of lumen (e.g., atherosclerosis).[citation needed] The term coarctation is another synonym,[4] but is commonly used only in the context of aortic coarctation.

Restenosis is the recurrence of stenosis after a procedure. The term is from Ancient Greek στενός, "narrow".


Stenoses of the vascular type are often associated with unusual blood sounds resulting from turbulent flow over the narrowed blood vessel. This sound can be made audible by a stethoscope, but diagnosis is generally made or confirmed with some form of medical imaging.

Other Languages
العربية: تضيق (طب)
беларуская: Стэноз
català: Estenosi
čeština: Stenóza
Deutsch: Stenose
eesti: Stenoos
español: Estenosis
français: Sténose
Հայերեն: Ստենոզ
hrvatski: Stenoza
Bahasa Indonesia: Stenosis
italiano: Stenosi
қазақша: Стриктура
latviešu: Stenoze
Nederlands: Stenose
norsk: Stenose
norsk nynorsk: Stenose
polski: Stenoza
português: Estenose
română: Stenoză
русский: Стеноз
slovenčina: Stenóza
svenska: Stenos
українська: Стеноз