Arrowhead sign (caecum)
Last revised by Daniel J Bell on 22 Jun 2021
Citation, DOI, disclosures and article data
Citation:
Stanislavsky A, Bell D, Qureshi P, et al. Arrowhead sign (caecum). Reference article, Radiopaedia.org (Accessed on 28 Jun 2024) https://doi.org/10.53347/rID-12246
rID:
12246
Article created:
2 Nov 2010,
Alexandra Stanislavsky ◉
Disclosures:
At the time the article was created Alexandra Stanislavsky had no recorded disclosures.
View Alexandra Stanislavsky's current disclosures
Last revised:
22 Jun 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:
5 times, by
4 contributors -
see full revision history and disclosures
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Synonyms:
- Arrow head sign (caecum)
The arrowhead sign refers to the focal caecal thickening centred on the appendiceal orifice, seen as a secondary sign in acute appendicitis. The contrast material in the caecal lumen assumes an arrowhead configuration, pointing at the appendix.
The arrowhead sign is applicable only when enteric contrast distends the caecum.
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References
- 1. Pinto leite N, Pereira JM, Cunha R et-al. CT evaluation of appendicitis and its complications: imaging techniques and key diagnostic findings. AJR Am J Roentgenol. 2005;185 (2): 406-17. AJR Am J Roentgenol (full text) - Pubmed citation
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