Pulmonary trunk dilatation
Disclosures
- updated 10 May 2022:
Nothing to disclose
Updates to Article Attributes
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Dilatation of the pulmonary trunk or dilatation of the main pulmonary artery (mPA) has a range of causes, and is often (though not always) associated with pulmonary hypertension. Most publications suggest an upper limit of normal in the region of 29-33 mm 1, which can be higher in males 7. Other publications also suggest the pulmonary trunk to aortic ratio as an additional useful measure (where the normal ratio in most cases is around 1:1 or less).
Pathology
Aetiology
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pulmonary hypertension
- pulmonary arterial hypertension
- thromboembolic disease (acute or chronic)
- Eisenmenger syndrome
- high altitude
- schistosomiasis: probably from schistosomiasis-associated pulmonary hypertension
- increased / turbulent blood flow
- cardiovascular abnormalities
- conditions that predispose to left-to-right shunts
- pulmonary valve stenosis
- pulmonary arteriovenous malformations
- cardiovascular abnormalities
- pulmonary vasculitides
- connective tissue diseases
- infectious aetiology
- tuberculosis
- syphilis
- bacterial infection
- traumatic / iatrogenic causes
- others: some publications suggest an increased rate of occurrence in anthracofibrosis 1
- idiopathic: idiopathic dilatation of the pulmonary trunk
See also
-<li>syphilis</li>- +<li><a title="syphilis" href="/articles/syphilis">syphilis</a></li>