Diagnostic and Interventional Radiology
Chest Imaging - Case Report 2016

Fallen lung sign: radiographic findings


Departments of Radiology, Ege University School of Medicine, İzmir, Turkey

Diagn Interv Radiol 2008; 14: 120-121
Read: 1049 Downloads: 848 Published: 03 September 2019



The term “fallen lung sign” refers to the collapsed lung in a dependent position, hanging on the hilum only by its vascular attachments. This is usually the result of the complete rupture of a bronchus. On chest radiograph, the diagnosis of bronchial tear is usually suspected with the persistence of a pneumothorax after chest tube insertion. An 8-year-old male patient had radiographic findings of persistence of right pneumothorax which was due to complete rupture of the right main bronchus, resulting in fallen lung.
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