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PURPOSE: Acute appendicitis is the most common surgical abdominal emergency. In the early diagnosis of acute appendicitis,
the fact that there is no a sign which could be a reliable indicator in most of the patients increases the complications.
In this study we aimed to search the relation between Ultrasonography(US) findings in patients with diagnosis
of acute appendicitis and postoperative histopathologic investigation on remoced appendix..
MATERıALS AND METHODS: The files of 174 patients who came in our emergency department with lower right abdominal
pain were studied retrospectively from January 2013 to May 2014. Of them, 26 patients were excluded, because
these patients were not studied with US. US findings and histopathology reports of 148 patients with suspected acute
appendicitis and studies preoperatively with abdominal US were enrolled. Greater than 6-mm diameter of the appendix
under compression was accepted as positive sign of appandicitis in US. The demographic characteristics of the patients,
US findings (acut appendicitis or not) and the pathology results were recorded on the standard proform.
RESULTS: Of these 148 patients, 100 were acute appendicitis in preoperative US, and of these 100 patients, 93 histopathologic
reports were acute appendicitis, 7 were normal appendices. The sensitivity of US was 75.6 % and specificity
was 72 %. Positive predictive value (PPV) was 93 %, negative predictive value (NPV) was 14.6 % and the accuracy
of US value was 81.7%. As a result, although US in diagnosis of acute appendicitis is a reliable technique, negative
result doesn’t mean no acute appendicitis. In order to determine an accurate diagnosis of acute appendicitis clinical and
laboratoary findings should be assessed together.