Steeple sign
Steeple Sign
Steeple Sign (pronunciation: /ˈstiːpəl saɪn/) is a term used in radiology to describe a specific appearance on a frontal neck radiograph indicating the presence of croup, a common respiratory condition in children.
Etymology
The term "Steeple Sign" is derived from its resemblance to a church steeple when viewed on a radiograph. The narrowing of the upper trachea creates a pointed appearance, similar to a steeple.
Definition
Steeple Sign refers to the narrowing of the upper trachea seen on a frontal neck radiograph. This is typically caused by the swelling of the subglottic area, which is a common symptom of croup. The subglottic area is the region of the trachea located below the vocal cords and above the lower trachea.
Related Terms
- Croup: A common respiratory condition in children characterized by a barking cough and difficulty breathing. It is often caused by a viral infection.
- Radiograph: An image produced by passing radiation through an object and onto a photographic film or digital detector.
- Trachea: The windpipe, a tube that connects the pharynx and larynx to the lungs, allowing the passage of air.
- Subglottic area: The region of the trachea located below the vocal cords and above the lower trachea.
See Also
External links
- Medical encyclopedia article on Steeple sign
- Wikipedia's article - Steeple sign
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