This site is targeted at medical and radiology professionals, contains user contributed content, and material that may be confusing to a lay audience. Use of this site implies acceptance of our Terms of Use.

Differences in PA versus AP projection on a chest radiograph

Case contributed by: Dr Yi-Jin Kuok

Presentation:

Motor bike accident

Patient Data:

Age: 30
Gender: Male

the superior mediastinum appears widened due to AP magnification

the heart appears enlarged - a combination of AP magnification and underinflation

there appears to be a bilateral interstitial infiltrate - also due to underinflation

same patient, repeat CXR the next day (PA projection this time)

completely normal

Updating… Please wait.
Loadinganimation

Alert_accept

Error Unable to process the form. Check for errors and try again.

Alert_accept Thank you for updating your details.