The accuracy and role of cross-sectional imaging in the diagnosis of acute appendicitis.

Based on current literature review, most patients with suspected or possible appendicitis should undergo cross-sectional imaging. CT scanning is preferred in most patients; US is recommended in children or pregnant women. MRI is usually indicated in women or children with nondiagnostic US. Thin young men with classic history, laboratory studies, and examination are best managed with standard appendectomy without imaging. Most other patients should undergo cross-sectional imaging (i.e., CT scan).