Appendiceal wall thickening at CT in asymptomatic patients with extraintestinal malignancy may mimic appendicitis

The purpose of this study was to describe the CT appearance and determine the prevalence of thick-walled appendices in patients with an extraintestinal primary malignancy. This potential mimic of appendicitis may occur in up to 2% of cancer patients. Awareness of this pitfall is important to avoid unnecessary laparotomy in this patient population.