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Uptodate Reference Title
Chest radiograph of a child with pneumomediastinum
Chest radiograph of a child with pneumomediastinum
In this radiograph of a child with pneumomediastinum, the following characteristic signs are seen:
The "continuous diaphragm sign," in which the mediastinal gas is seen as a thin lucent line outlining the superior surface of the diaphragm and separating it from the heart (white arrows).
"Naclerio's V sign," in which the gas outlines the lateral margin of the descending aorta and extends laterally over left hemidiaphragm (black arrows).
Courtesy of Ibrahim Janahi, MD, and Ammar Alishlash, MD, FAAP.