Croup chest x ray

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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

  • 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.

X Ray Examples in Croup

References

  1. 1.0 1.1 Salour M (2000). "The steeple sign". Radiology. 216 (2): 428–9. PMID 10924564.
  2. 2.0 2.1 2.2 2.3 "Radiopaedia.org".

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