Arrowhead sign (cecum)

Last revised by Dr Daniel J Bell on 22 Jun 2021

The arrowhead sign refers to the focal cecal thickening centered on the appendiceal orifice, seen as a secondary sign in acute appendicitis. The contrast material in the cecal lumen assumes an arrowhead configuration, pointing at the appendix.  

The arrowhead sign is applicable only when enteric contrast distends the cecum.

See also

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Cases and figures

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