Croup chest x ray: Difference between revisions
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==Overview== | ==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== | ==Key X Ray Findings in Croup== | ||
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:* The point of the inverted V is at the level of the inferior margin of the true vocal cords. | :* 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 [[trachea|tracheal]] air column, which resembles a steeply pitched roof or a church steeple. | :* Narrowing of the subglottic [[lumen]] alters the [[radiographic]] appearance of the [[trachea|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.{{cite journal | author = Salour M | title = The steeple sign. | journal = Radiology | volume = 216 | issue = 2 | pages = 428-9 | year = 2000 | id = PMID 10924564}}</ref> | * The [[lateral]] [[radiograph]] of the [[upper airway]] will show a normal [[epiglottis]] and narrowing of the subglottic region.<ref>{{cite journal | author = Salour M | title = The steeple sign. | journal = Radiology | volume = 216 | issue = 2 | pages = 428-9 | year = 2000 | id = PMID 10924564}}</ref> | ||
* Distension of the [[hypopharynx]] can is also be revealed by | * 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== | ==X Ray Examples in Croup== | ||
Revision as of 16:45, 16 February 2016
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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.[2]
- 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. [3]](/images/8/80/Croup-002.jpg)
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![Frontal view of the steeple sign in a croup patient. From Radiopaedia Image Library. [3]](/images/f/f1/Croup-003.jpg)
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![Lateral view of the steeple sign in a croup patient. From Radiopaedia Image Library. [3]](/images/8/81/Croup-004.jpg)
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![Lateral view of the steeple sign in a croup patient that also displays distended hypopharynx. From Radiopaedia Image Library. [3]](/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. [3]
![Frontal view of the steeple sign in a croup patient. From Radiopaedia Image Library. [3]](/index.php/File:Croup-002.jpg)
![Frontal view of the steeple sign in a croup patient. From Radiopaedia Image Library. [3]](/index.php/File:Croup-003.jpg)
![Lateral view of the steeple sign in a croup patient. From Radiopaedia Image Library. [3]](/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. [3]](/index.php/File:Croup-005.jpg)