Chen sign
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Chen sign on chest radiography is the prominence of the left basal pulmonary vasculature, compared to the right base, seen in valvular pulmonary stenosis. It is due to the asymmetric increase in pulmonary blood flow to the left lung due to preferential blood flow into the left pulmonary artery after passing through the stenosed pulmonary valve during systole. The left pulmonary artery may be dilated due to post stenotic effects.
History and etymology
It is named after James TT Chen, (1925-2006) a Chinese-American cardiothoracic radiologist who was a Professor at Duke University Medical Centre.
-<p><strong>Chen sign</strong> on chest radiography is the prominence of left basal pulmonary vasculature compared the right base seen in valvular <a href="/articles/pulmonary-valve-stenosis">pulmonary stenosis</a>. It is due to the asymmetric increase in pulmonary blood flow to the left lung due to preferential blood flow into the <a href="/articles/left-pulmonary-artery">left pulmonary artery</a> after passing through the stenosed pulmonary valve during systole. The left pulmonary artery may be dilated due to post stenotic effects.</p><h4>History and etymology</h4><p>It is named after<strong> James TT Chen</strong>, (1925-2006) a Chinese-American cardiothoracic radiologist who was a Professor at Duke University Medical Centre.</p>- +<p><strong>Chen sign</strong> on chest radiography is the prominence of the left basal pulmonary vasculature, compared to the right, seen in valvular <a href="/articles/pulmonary-valve-stenosis">pulmonary stenosis</a>. It is due to the asymmetric increase in pulmonary blood flow to the left lung due to preferential blood flow into the <a href="/articles/left-pulmonary-artery">left pulmonary artery</a> after passing through the stenosed pulmonary valve during systole. The left pulmonary artery may be dilated due to post stenotic effects.</p><h4>History and etymology</h4><p>It is named after<strong> James TT Chen</strong>, (1925-2006) a Chinese-American cardiothoracic radiologist who was a Professor at Duke University Medical Centre.</p>
References changed:
- 3. https://www.hallwynne.com/james-t-t-chen-m-d/ (accessed 16/01/2020)
- 3. https://www.hallwynne.com/james-t-t-chen-m-d/ accessed 16/01/2020.
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