The following table or figure may be downloaded to PowerPoint for personal use in teaching and presentations. This feature is available to all subscribers to the journal.

You MUST read and follow the guidelines at Request to Reproduce AJR Content if you are distributing or using AJR content beyond academic use (limited distribution, non-revenue producing, or educational purposes).

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)

Fig. 1. —9-year-old girl with acute appendicitis (true-positive). CT scan obtained with colonic contrast material and 5-mm collimation through lower abdomen and pelvis shows markedly enlarged, nonfilling appendix (between straight arrows). Note appendicolith (curved arrow). Fat-stranding is diffuse. Note also arrowhead sign of thickened cecal wall pointing to appendiceal orifice. All findings are consistent with appendicitis. At surgery, patient was found to have acute appendicitis.