Stenosis | |
---|---|
Other names | Stenoses |
CT scan of a bronchial stenosis (arrow) that resulted from tracheobronchial injury | |
Pronunciation |
Stenosis (from Ancient Greek στενός (stenós) 'narrow') is the abnormal narrowing of a blood vessel or other tubular organ or structure such as foramina and canals. 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). [4] The term coarctation is another synonym, [5] but is commonly used only in the context of aortic coarctation. [6] [7]
Restenosis is the recurrence of stenosis after a procedure. [8]
Examples of vascular stenotic lesions include:
The types of stenoses in heart valves are:
Stenoses/strictures of other bodily structures/organs include:
This section needs expansion with: user-friendly content beyond a simple list. You can help by
adding to it. (October 2023) |
This section needs additional citations for
verification. (September 2022) |
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 (such as ultrasound). [10]
Stenosis | |
---|---|
Other names | Stenoses |
CT scan of a bronchial stenosis (arrow) that resulted from tracheobronchial injury | |
Pronunciation |
Stenosis (from Ancient Greek στενός (stenós) 'narrow') is the abnormal narrowing of a blood vessel or other tubular organ or structure such as foramina and canals. 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). [4] The term coarctation is another synonym, [5] but is commonly used only in the context of aortic coarctation. [6] [7]
Restenosis is the recurrence of stenosis after a procedure. [8]
Examples of vascular stenotic lesions include:
The types of stenoses in heart valves are:
Stenoses/strictures of other bodily structures/organs include:
This section needs expansion with: user-friendly content beyond a simple list. You can help by
adding to it. (October 2023) |
This section needs additional citations for
verification. (September 2022) |
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 (such as ultrasound). [10]