Left lower lobe collapse

Case contributed by Dr Derek Smith

Presentation

Cough and desaturations on background of recent left lower lobe pneumonia and COPD.

Patient Data

Age: 80
Gender: Male
X-ray

Airspace opacification in the left lower zone, with loss of definition of the medial left hemidiaphragm. With this, a straight border is seen going from the diaphragm to the AP window. This is known as the "sail sign" and demonstrates left lower lobe collapse.

Case Discussion

Sail sign is a descriptive term for left lower lobe collapse. As the tissues lose aeration, the density of the lobe increases and collapses medially.

PlayAdd to Share

Case information

rID: 40101
Case created: 7th Oct 2015
Last edited: 24th Jan 2017
System: Chest
Inclusion in quiz mode: Included

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.