Steeple sign

The steeple sign (also called wine bottle sign) refers to tapering of the upper trachea on a frontal chest radiograph reminiscent of a church steeple. The appearance is suggestive of croup, which should be obvious clinically. A corresponding lateral x-ray would show narrowing of the subglottic trachea and ballooning of the hypopharynx. 


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Chest x-ray

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