A stenosis (from Ancient Greek στενός, "narrow") is an abnormal narrowing in 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). Stricture as a term is usually used when narrowing is<unk> d by contraction of smooth muscle (e.g. achalasia, prinzmetal angina); stenosis is usually used when narrowing is<unk> d by lesion that reduces the space of lumen (e.g. atherosclerosis). The term coarctation is another synonym, but is commonly used only in the context of aortic coarctation. Restenosis is the recurrence of stenosis after a procedure.
medical cause of Heart murmur
symptom of Pulmonary valve stenosis
symptom of Tricuspid insufficiency
symptom of Mitral valve stenosis
symptom of Mitral valve prolapse
symptom of Trilogy of Fallot
symptom of Pericarditis
symptom of Hypertrophic cardiomyopathy