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The steeple sign (also called the wine bottle sign, and inverted V sign), refers to the tapering of the upper trachea on a frontal chest radiograph reminiscent of a church steeple, s

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Tracheal stenosis, Radiology Reference Article

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Laryngotracheal Stenosis: Clinical Manifestations and Management - Nathaen S. Weitzel, Vijay Ramakrishnan, Micheal Weyant, Ferenc Puskas, 2011

Chest radiograph showed the steeple sign.

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Croup Imaging: Practice Essentials, Radiography

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