This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Cardiac notch (anatomy)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The cardiac notch is the lateral deflection of the anterior border of the left lung. It is produced to accommodate the space taken up by the heart. It leaves a small anterior area of pericardium in direct contact with the sternum; this area is dull to percussion - the area of 'superficial cardiac dullness' - unlike the surrounding regions where overlying lung makes the percussion note relatively resonant.

On the mediastinal surface of the left lung it in continuity with the anterior margin of the cardiac impression.

Related pages

Create an account to add page annotations

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page