Flat waist sign
Citation, DOI, disclosures and article data
At the time the article was created Vinod G Maller had no recorded disclosures.View Vinod G Maller's current disclosures
At the time the article was last revised Craig Hacking had no recorded disclosures.View Craig Hacking's current disclosures
The flat waist sign refers to flattening of the left heart border, specifically the contours of the aortic arch and adjacent pulmonary trunk. It is seen in severe left lower lobe collapse and is caused by leftward displacement and rotation of the heart.