Accuracy of speculoscopy in detection of cervical neoplasia.

ABSTRACT

From May 1995 to June 1996, a total of 256 patients with associated gynecologic conditions requiring further cervical biopsy, cervical conization or total abdominal hysterectomy at Siriraj Hospital underwent examination for cervical neoplasia by speculoscopy without prior knowledge of the results of previous Pap smears. Compared with the histological results for the cervix, the accuracy, sensitivity, specificity, positive predictive value, negative predictive value, false positive rate and false negative rate of speculoscopy in the detection of cerical neoplasia were 82.0, 84.6, 79.2, 82.1, 81.9, 20.8 and 15.4 per cent respectively. When speculoscopy and Pap smear were combinded, sensitivity increased and the false negative rate decreased. In places where cervical cancer screening by Pap smear are not well established, speculoscopy could be an alternative method offering fair to good results compared with Pap smear.