Right middle lobe atelectasis
First study the x-rays and then continue reading.
What are the findings?
Blurring of the right heart border (silhouette sign)
Triangular density on the lateral view as a result of collapse of the middle lobe
Usually right middle lobe atelectasis does not result in noticable elevation of the right diaphragm.
A pectus excavatum can mimick a middle lobe atelectasis on a frontal view, but the lateral view should solve this problem. #Clinical #Radiology #CXR #Lateral #RML #MiddleLobe #Lobar #Collapse #SilhouetteSign #RadiologyAssistant