Stenosis: Difference between revisions

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{{Infobox medical condition (new)
{{SI}}
{{Infobox medical condition
| name            = Stenosis
| name            = Stenosis
| synonyms        = Stenoses
| image          = [[File:Bronchial_stenosis_CT.JPG|250px]]
| pronounce      = {{IPAc-en|s|t|ə|ˈ|n|oʊ|s|ᵻ|s}}
| caption        = CT scan showing bronchial stenosis
| field          =  
| field          = [[Cardiology]], [[Gastroenterology]], [[Neurology]], [[Orthopedics]], [[Pulmonology]]
| image          = Bronchial stenosis CT.JPG
| synonyms        = Narrowing, Stricture
| caption        = [[CT scan]] of a [[bronchus|bronchial]] stenosis<br>(arrow) that resulted from [[tracheobronchial injury]]
| symptoms        = [[Pain]], [[Swelling]], [[Numbness]], [[Weakness]], [[Breathing difficulties]]
| symptoms        =
| complications  = [[Ischemia]], [[Organ dysfunction]], [[Paralysis]]
| complications  =  
| onset          = Varies by type
| onset          =  
| duration        = Chronic
| duration        =  
| causes          = [[Atherosclerosis]], [[Inflammation]], [[Tumors]], [[Congenital]]
| types          =
| risks          = [[Smoking]], [[Obesity]], [[Diabetes]], [[Hypertension]]
| causes          =  
| diagnosis      = [[Imaging studies]], [[Endoscopy]], [[Angiography]]
| risks          =  
| differential    = [[Obstruction]], [[Aneurysm]]
| diagnosis      =  
| prevention      = [[Lifestyle modification]], [[Medication]]
| differential    =  
| treatment      = [[Surgery]], [[Stenting]], [[Medication]]
| prevention      =  
| prognosis      = Varies by type and severity
| treatment      =  
| frequency      = Common
| medication      =
| prognosis      =  
| frequency      =  
| deaths          =
}}
}}
A '''stenosis''' (from [[Ancient Greek]] στενός, "narrow") is an abnormal narrowing in a [[blood vessel]] or other tubular [[Organ (anatomy)|organ]] or structure. It is also sometimes called a '''stricture''' (as in [[urethral stricture]]).<ref>{{cite web |url=http://www.mercksource.com/pp/us/cns/cns_hl_dorlands_split.jsp?pg=/ppdocs/us/common/dorlands/dorland/seven/000100588.htm#000100588 |title=Dorlands Medical Dictionary:stenosis |publisher=www.mercksource.com |accessdate=2010-05-05 }}</ref>
{{Short description|A narrowing of the bronchial tubes}}


''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 (anatomy)|lumen]] (e.g. [[atherosclerosis]]).{{cn|date=August 2015}} The term '''coarctation''' is another synonym,<ref>{{DorlandsDict|two/000022218|coarctation}}</ref> but is commonly used only in the context of [[aortic coarctation]].
'''Bronchial stenosis''' is a medical condition characterized by the narrowing of the bronchial tubes, which are the air passages that lead from the trachea to the lungs. This condition can lead to significant respiratory issues due to the obstruction of airflow.
 
[[Restenosis]] is the recurrence of stenosis after a procedure.
 
==Types==
The resulting syndrome depends on the structure affected.
 
{{Anchor|Vascular}} Examples of vascular stenotic lesions include:
*[[Intermittent claudication]] (peripheral artery stenosis)
*[[Angina pectoris|Angina]] ([[Coronary artery disease|coronary artery stenosis]])
*[[Carotid artery stenosis]] which predispose to ([[stroke]]s and [[transient ischaemic episode]]s)
*[[Renal artery stenosis]]
 
{{Anchor|Valvular}} The types of stenoses in [[heart valve]]s are:
*[[Pulmonary valve stenosis]], which is the thickening of the [[pulmonary valve]], therefore causing narrowing
*[[Mitral valve stenosis]], which is the thickening of the [[mitral valve]] (of the [[left heart]]), therefore causing narrowing
*[[Tricuspid valve stenosis]], which is the thickening of the [[tricuspid valve]] (of the [[right heart]]), therefore causing narrowing
*[[Aortic valve stenosis]], which is the thickening of the [[aortic valve]], therefore causing narrowing
 
Stenoses/strictures of other bodily structures/organs include:
*[[Pyloric stenosis]] ([[gastric]] outflow obstruction)
*[[Lumbar spinal stenosis|Lumbar]], [[cervical spinal stenosis|cervical]] or thoracic [[spinal stenosis]]
*[[Subglottic stenosis]] (SGS)
*[[Tracheal stenosis]]
*[[Obstructive jaundice]] ([[biliary tract]] stenosis)
*[[Bowel obstruction]]
*[[Phimosis]]
*[[Non-communicating hydrocephalus]]
*[[Stenosing tenosynovitis]]
*[[Atherosclerosis]]
*[[Esophageal stricture]]
*[[Achalasia]]
*[[Prinzmetal angina]]
*[[Vaginal stenosis]]
==Causes==
==Causes==
*[[atherosclerosis]] causes stenotic lesions in [[arteries]].
Bronchial stenosis can result from a variety of causes, including:
*[[birth defect]]s
* [[Inflammation]] due to infections such as [[tuberculosis]] or [[pneumonia]].
*[[calcification]]
* [[Trauma]] to the bronchial tubes, which may occur during surgical procedures or due to inhalation of foreign objects.
*[[diabetes]]
* [[Tumors]] that grow within or compress the bronchial tubes.
*[[iatrogenic]], e.g. secondary to [[radiation therapy]]
* [[Autoimmune diseases]] such as [[granulomatosis with polyangiitis]].
*[[infection]]
* [[Congenital]] abnormalities present at birth.
*[[inflammation]]
==Symptoms==
*[[ischemia]]
The symptoms of bronchial stenosis can vary depending on the severity of the narrowing and may include:
*[[neoplasm]] – in such cases, the stenosis is often said to be "[[malignant]]" or "[[benign]]", although this attribute actually refers to the neoplasm itself.
* [[Dyspnea]] (shortness of breath)
*[[smoking]]
* [[Wheezing]]
*[[ureter]]al
* [[Coughing]], which may be persistent
*[[urethra]]l
* [[Stridor]], a high-pitched wheezing sound
* [[Recurrent respiratory infections]]
==Diagnosis==
==Diagnosis==
Stenoses of the [[Blood vessel|vascular]] type are often associated with [[bruit|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]].
Diagnosis of bronchial stenosis typically involves imaging studies such as:
* [[Chest X-ray]]
* [[Computed tomography]] (CT) scan, which provides detailed images of the bronchial tubes
* [[Bronchoscopy]], a procedure that allows direct visualization of the airways
==Treatment==
Treatment options for bronchial stenosis depend on the underlying cause and severity of the condition. They may include:
* [[Bronchoscopic]] interventions, such as balloon dilation or stent placement, to open the narrowed airway.
* [[Surgical resection]] of the affected segment of the bronchus in severe cases.
* [[Medication]]s to treat underlying infections or inflammation.
* [[Radiation therapy]] or [[chemotherapy]] if the stenosis is due to a tumor.
==Prognosis==
The prognosis for individuals with bronchial stenosis varies. With appropriate treatment, many patients experience significant improvement in symptoms. However, the condition can be chronic and may require ongoing management.
==See also==
==See also==
*[[Atresia]]
* [[Bronchitis]]
*[[Restenosis]]
* [[Asthma]]
{{stub}}
* [[Chronic obstructive pulmonary disease]]
{{Vascular diseases}}
* [[Tracheal stenosis]]
[[Category:Gross pathology]]
[[Category:Respiratory diseases]]
[[Category:Medical terminology]]

Latest revision as of 18:12, 8 April 2025

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD's medical weight loss NYC, sleep center NYC
Philadelphia medical weight loss and Philadelphia sleep clinics

Stenosis
File:Bronchial stenosis CT.JPG
Synonyms Narrowing, Stricture
Pronounce N/A
Specialty N/A
Symptoms Pain, Swelling, Numbness, Weakness, Breathing difficulties
Complications Ischemia, Organ dysfunction, Paralysis
Onset Varies by type
Duration Chronic
Types N/A
Causes Atherosclerosis, Inflammation, Tumors, Congenital
Risks Smoking, Obesity, Diabetes, Hypertension
Diagnosis Imaging studies, Endoscopy, Angiography
Differential diagnosis Obstruction, Aneurysm
Prevention Lifestyle modification, Medication
Treatment Surgery, Stenting, Medication
Medication N/A
Prognosis Varies by type and severity
Frequency Common
Deaths N/A


A narrowing of the bronchial tubes


Bronchial stenosis is a medical condition characterized by the narrowing of the bronchial tubes, which are the air passages that lead from the trachea to the lungs. This condition can lead to significant respiratory issues due to the obstruction of airflow.

Causes[edit]

Bronchial stenosis can result from a variety of causes, including:

Symptoms[edit]

The symptoms of bronchial stenosis can vary depending on the severity of the narrowing and may include:

Diagnosis[edit]

Diagnosis of bronchial stenosis typically involves imaging studies such as:

Treatment[edit]

Treatment options for bronchial stenosis depend on the underlying cause and severity of the condition. They may include:

Prognosis[edit]

The prognosis for individuals with bronchial stenosis varies. With appropriate treatment, many patients experience significant improvement in symptoms. However, the condition can be chronic and may require ongoing management.

See also[edit]