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Korean J Pathol. 2009 Apr;43(2):157-163. English. Original Article.
Lee KB , Park WS , Sohn JH , Kim MK , Kim DH , Kim HS , Chae SW , Kang SH , Cho YH , Pak HD , Kim SH .
Department of Pathology, Kangbuk Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.

BACKGROUND: The aim of this study was to confirm the usefulness of cervicovaginal smears in the screening of squamous cell neoplasms of the uterine cervix by comparative analysis between the cytologic diagnosis of cervicovaginal smears and the histologic diagnosis of tissue specimens. METHODS: We selected 743 patients who had both cervicovaginal smears and histologic evaluations of the uterine cervix by colposcopic biopsy, conization, or hysterectomy at the Kangbuk Samsung Medical Center between January 2005 and December 2007. RESULTS: The accuracy rate of cervicovaginal smears and histologic diagnoses was 93.0% (691/743) and showed a high correspondence (kappa value, 0.770, p-value, 0.000). The false-negative and false-positive rates were 0.5% (6/484) and 17.8% (46/259), respectively. The sampling and interpretation errors were identified in four and two cases of six false-negative cases and 29 and 17 cases of 46 false-positive cases, respectively. In screening high grade squamous cell neoplasms, there were no false-negative cases and only one false-positive case which resulted from sampling error. The false-negative rate of cervicovaginal smears and the false-positive rate in high-grade squamous cell neoplsams were very low. CONCLUSIONS: The cervicovaginal smear is a powerful tool for screening of cervical squamous cell neoplasms.

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