Chen sign

Last revised by Daniel J Bell on 2 Jul 2020

Citation, DOI, disclosures and article data

Citation:

Hacking C, Bell D, Chen sign. Reference article, Radiopaedia.org (Accessed on 19 Apr 2024) https://doi.org/10.53347/rID-73578

DOI:

https://doi.org/10.53347/rID-73578

Permalink:

https://radiopaedia.org/articles/73578

rID:

73578

Article created:

15 Jan 2020, Craig Hacking ◉ ◈

Disclosures:

At the time the article was created Craig Hacking had no recorded disclosures.

View Craig Hacking's current disclosures

Last revised:

2 Jul 2020, Daniel J Bell ◉

Disclosures:

At the time the article was last revised Daniel J Bell had no recorded disclosures.

View Daniel J Bell's current disclosures

Revisions:

4 times, by 2 contributors - see full revision history and disclosures

Systems:

Vascular, Chest, Cardiac

Sections:

Signs

Synonyms:

Chen's sign

Chen sign on chest radiography is the prominence of the left basal pulmonary vasculature, compared to the right, 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.