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Abstract Abdominal pain of uncertain etiology is the commonest reason for emergency surgical admission, it is also one of the most common conditions which calls for prompt diagnosis and treatment (Rhodes and Decar, 2002). The decision to operate on a patient with acute abdominal pain comes to the mind of the surgeon if routine investigations fail to identify the cause and therefore, abdominal emergency often poses a diagnostic challenge to the general surgeon, a correct diagnosis is crucial because of the various diseases that may be responsible for the same symptoms (Schietroma, 2005). Moreover, many of patients presenting with acute abdomen will undergo exploration for suspected appendicitis but in 20-35% of cases normal appendix is found and because of the limited access provided by the gridiron incision, a definitive diagnosis may not be found, other patients may be treated conservatively and discharged, only to return with recurrent pain and more definitive symptoms of pathology. In order to plan the appropriate procedure or to avoid unnecessary laparotomy, non invasive diagnostic |