Croup chest x ray
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Croup chest x ray On the Web |
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American Roentgen Ray Society Images of Croup chest x ray |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Luke Rusowicz-Orazem, B.S.
Overview
X Ray findings in croup patients include evidence of steeple sign: narrowing of the subglottic lumen in the neck. It also includes a visibly distended hypopharynx in some cases.
Key X Ray Findings in Croup
- Steeple sign is seen on anteroposterior radiographs of the soft tissues of the neck.[1]
- Normal lateral convexities of the subglottic trachea are lost, and narrowing of the subglottic lumen produces an inverted V configuration in this area.
- The point of the inverted V is at the level of the inferior margin of the true vocal cords.
- Narrowing of the subglottic lumen alters the radiographic appearance of the tracheal air column, which resembles a steeply pitched roof or a church steeple.
- The lateral radiograph of the upper airway will show a normal epiglottis and narrowing of the subglottic region.[1]
- Distension of the hypopharynx can is also be revealed by x ray, indicating a patient's attempt at decreasing airway resistance.
X Ray Examples in Croup
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![Frontal view of the steeple sign in a croup patient. From Radiopaedia Image Library. [2]](/images/8/80/Croup-002.jpg)
Frontal view of the steeple sign in a croup patient. From Radiopaedia Image Library. [2]
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![Frontal view of the steeple sign in a croup patient. From Radiopaedia Image Library. [2]](/images/f/f1/Croup-003.jpg)
Frontal view of the steeple sign in a croup patient. From Radiopaedia Image Library. [2]
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![Lateral view of the steeple sign in a croup patient. From Radiopaedia Image Library. [2]](/images/8/81/Croup-004.jpg)
Lateral view of the steeple sign in a croup patient. From Radiopaedia Image Library. [2]
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![Lateral view of the steeple sign in a croup patient that also displays distended hypopharynx. From Radiopaedia Image Library. [2]](/images/e/ee/Croup-005.jpg)
Lateral view of the steeple sign in a croup patient that also displays distended hypopharynx. From Radiopaedia Image Library. [2]
![Frontal view of the steeple sign in a croup patient. From Radiopaedia Image Library. [2]](/index.php/File:Croup-002.jpg)
![Frontal view of the steeple sign in a croup patient. From Radiopaedia Image Library. [2]](/index.php/File:Croup-003.jpg)
![Lateral view of the steeple sign in a croup patient. From Radiopaedia Image Library. [2]](/index.php/File:Croup-004.jpg)
![Lateral view of the steeple sign in a croup patient that also displays distended hypopharynx. From Radiopaedia Image Library. [2]](/index.php/File:Croup-005.jpg)