Korean J Obstet Gynecol.
2000 Jun;43(6):1002-1007.
Cytologic Smear to Evaluate the Endocervical Canal after Cervical Conization
Abstract
OBJECTIVE
To evaluate the impact of the cytologic smear of the endocervical canal immediately after cervical conization
on the rate of residual cervical lesions.
METHOD: A retrospective review of 229 patients who underwent cervical conization
for high grade cervical intraepithelial neoplasia or microinvasive cancer followed by hysterectomy. Endocervical
Papanicolaou smear with a cytologic brush performed immediately after cervical conization in all 229 patients.
RESULTS
Fifty-four of 229 patients undergoing cervical conization followed by hysterectomy had residual lesion
in the hysterectomy specimen. The prevalence rate of residual lesion according to the margin status of conization
specimen as well as the results of the postconization Papanicolaou smear of the endocervical canal was compared.
Forty-one of 78 patients (52.6 %) with positive margins had residual lesion compared with thirteen of 151 patients (8.6 %)
with negative margins. Twenty-six of 34 patients (76.5 %) with positive postcone cytology had residual lesion compared
with twenty-eight of 195 patients (14.4 %) with negative postcone cytology.
CONCLUSIONS
Postcone cytologic smear of the endocervical canal as well as margin status are useful in predicting residual lesion after conization.