Omega epiglottis
Last revised by Daniel J Bell on 7 Jan 2021
Citation, DOI, disclosures and article data
Citation:
Gaillard F, Bell D, Baba Y, et al. Omega epiglottis. Reference article, Radiopaedia.org (Accessed on 06 Oct 2024) https://doi.org/10.53347/rID-6281
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rID:
6281
Article created:
Disclosures:
At the time the article was created Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosures
Last revised:
7 Jan 2021,
Daniel J Bell ◉
Disclosures:
At the time the article was last revised Daniel J Bell had no recorded disclosures.
View Daniel J Bell's current disclosures
Revisions:
9 times, by
7 contributors -
see full revision history and disclosures
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Synonyms:
- Omega-shaped epiglottis
The omega epiglottis is a variant configuration of the normal epiglottis in which the lateral folds are curled inwards. The configuration is not necessarily pathologic but has been associated with higher rates of laryngomalacia 3.
Differential diagnosis
When seen on a lateral neck radiograph, an omega epiglottis can appear prominent, mimicking the epiglottic thickening seen in epiglottitis 1,4, and all causes of epiglottic enlargement in general. Thus, this anatomic variant represents a potential pitfall in evaluating neck radiographs.
References
- 1.Swischuk LE. Imaging of the newborn, infant, and young child. Lippincott Williams & Wilkins. (2004) ISBN:0781734584. Read it at Google Books - Find it at Amazon
- 2. Grover C. Images in clinical medicine. "Thumb sign" of epiglottitis. N. Engl. J. Med. 2011;365 (5): 447. doi:10.1056/NEJMicm1009990 - Pubmed citation
- 3. Petkar N, Georgalas C, Bhattacharyya A. High-rising epiglottis in children: should it cause concern?. (2007) Journal of the American Board of Family Medicine : JABFM. 20 (5): 495-6. doi:10.3122/jabfm.2007.05.060212 - Pubmed
- 4. Ramesh Iyer, Teresa Chapman. Pediatric Imaging. (2015) ISBN: 9781496329561
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