[The role of peritoneal aspiration cytology diagnosis of acute appendicitis].
BACKGROUND
The purpose of this study is to search the role of peritoneal aspiration cytology in acute appendicitis.


METHODS
Peritoneal aspiration cytology was (PAC) conducted for fifty suspected acute appendicitis patients before their operations. PAC findings was compared with histopathologic results.


RESULTS
Negative appendicectomy rate according to clinical diagnosis was 20%. PAC was positive in 32 and negative in 18 patients. 93.75% PAC (+) patients had acute appendicitis, 44.4% PAC (-) patients had normal appendices. The false positive rate was 6.2% and the false negative rate was 55.6%. The sensitivity, the specificity, the positive predictive value, the negative predictive value of PAC for the diagnosis of acute appendicitis were 75%, 80%, 93.8%, 44.4%, respectively and the accuracy was 76%.


CONCLUSIONS
PAC positive results support the diagnosis of acute appendicitis strongly. However, PAC (-) results don't exclude the diagnosis of acute appendicitis.
Kisli
Erol
E
Yüzüncü Yil Universitesi Tip Faklutesi Genel Cerrahi Anabilim Dali, Van, Turkey. erolkisli@hotmail.com
Ozgören
Ersin
E
Arslantürk
Hasan
H
Aydin
Metin
M
Güler
Osman
O
Bayram
Irfan
I
D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D001062:Appendectomy; D001064:Appendicitis / Q000473:pathology* / Q000601:surgery; D001202:Ascitic Fluid / Q000166:cytology*; D001707:Biopsy, Needle / Q000592:standards; D005260:Female; D006801:Humans; D007416:Intestinal Perforation / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011446:Prospective Studies; D012422:Rupture, Spontaneous; D012680:Sensitivity and Specificity