Pneumomediastinum with ring around the artery sign on chest radiograph
Pneumomediastinum with ring around the artery sign on chest radiograph
Plain chest radiographs of a 22-year-old-woman who presented to the emergency department with 10 days of sore throat and cough. (A) A radiograph of the chest in the posteroanterior projection reveals linear lucencies overlying the upper chest and neck (arrows) consistent with pneumomediastinum. (B) A radiograph of the chest in the lateral projection reveals the "ring around the artery" sign (arrow), a finding seen in pneumomediastinum. (C) A magnified view of the "ring around the artery" sign (arrow).
Courtesy of Anna Ellermeier, MD.
Graphic 90041 Version 2.0
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