Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed
Etiology/Pathophysiology:
Bronchial obstruction leading to peripheral airway collapse can be
caused by mucous obstructing the airway in asthma or
post-operatively, or following aspiration of a foreign body.
Pathology:
Not applicable
Imaging Findings:
Atelectasis is associated with a shift of the adjacent structures,
such as the mediastinum, into the involved hemithorax. A "silhouette
sign" occurs when the collapsed lung abuts against the heart and
obliterates the margin between the lung and the heart.
DDX:
References:
Haller JO, Slovis TL: Introduction to radiology in clinical
pediatrics. Yearbook Medical Publishers (Chicago) 1984.
Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
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