From the case: Croup - steeple sign

Modality: X-ray (Frontal)

- “ 30 month old boy with croup demonstrating a steeple sign on AP radiograph. ”

Used in the following article:

  • Croup - “ Croup, also known as acute laryngotracheobronchitis, is due to viral infection of the upper airway by parainfluenza virus or respiratory syncytial...”
  • Steeple sign (trachea) - “ The steeple sign, also called the wine bottle sign, refers to the tapering of the upper trachea on a frontal chest radiograph reminiscent of a chu...”

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