RESUMEN
20 patients have been evaluated by CT, if they have appendicitis either proximal or distal. the changed occurred in CT has been documented by many radiologist. Our purpose is to find, is it worthy to do CT to diagnose appendicitis in Egypt. Appendicitis historically has been diagnosed clinically, with only occastional use of diagnostic imaging. Reported rates of negative findings at diagnostic laparotomy in patients diagnosed clinically range between 6.5% and 45% [average, 20%] [1-3]. Reported clinical false - negative ranges between 7% and 33% [average, 20%] [4.5] when clinical impression alone was relied on for diagnosis, a normal appendix was removed in approximately every fifth patient who underwent appendecetomy and the diagnosis was over looked in every fifth patient who actually has appendicitis but was clinically evaluated and sent home