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Unenhanced Limited CT of the Abdomen in the Diagnosis of Appendicitis in Children

Comparison with Sonography

Lisa H. Lowe1, Michael W. Penney1, Sharon M. Stein1, Richard M. Heller1, Wallace W. Neblett2, Yu Shyr3 and Marta Hernanz-Schulman1

1 Department of Radiology and Radiological Sciences, Vanderbilt University Children's Hospital and Medical Center, D-1120 Medical Center North, Nashville, TN 37232-2675.
2 Department of Pediatric Surgery, Vanderbilt University Children's Hospital and Medical Center, Nashville, TN 37232-2675.
3 Department of Biostatistics, Vanderbilt University Children's Hospital and Medical Center, Nashville, TN 37232-2675.



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  		Fig. 1. —11-year-old boy with acute appendicitis. Axial CT image shows enlarged appendix (curved arrow) with surrounding periappendiceal inflammation (straight arrows).

 


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  		Fig. 2. —15-year-old boy with perforated appendicitis and phlegmon. Axial CT image reveals inflammatory mass (open arrows) in right lower quadrant containing appendicolith (solid arrow).

 


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  		Fig. 3. —10-year-old girl with normal appendix. Axial CT image shows retrocecal appendix (arrow) without evidence of inflammation to suggest appendicitis.

 


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  		Fig. 4. —12-year-old girl with normal appendix. Axial CT image shows normal appendix (arrow) is filled with air.

 


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  		Fig. 5. —5-year-old boy with abdominal pain and appendicitis. Axial CT image shows appendicolith (arrow) in right lower quadrant. Periappendiceal inflammation was not appreciated because of paucity of fat in this patient.

 

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