The Analysis of Treatments after Further Examination of Cervical Cancer Screening on Bethesda System Classification

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  • 子宮頸部がん検診における要精検者の治療実施状況についてのベセスダシステム分類別検証

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Abstract

<p> Introduction: In April 2011, our facility introduced the liquid-based cytology and Bethesda system classification into the cervical cancer screening. We analyzed 197 examinees who required further examination after the screening from April 2011 to March 2016.</p><p> Methods: We analyzed mainly the replies to the introduction letters about the treatment after the further examination.</p><p> Results: The detection rate of the examinees who required further examination was 1.1% and the rate was higher in younger age groups. The fractions of the examinees who required further examination were ASC-US 37%, LSIL 41%, ASC-H 2%, HSIL 17% and AGC 3%. After further examination, 3 women (25% of ASC-H and 33% of AGC) underwent hysterectomy and 30 women underwent conization (10% of ASC-US, 7% of LSIL, 50% of ASC-H, 42% of HSIL and 17% of AGC). The conization group fractions were ASC-US 23%, LSIL 20%, ASC-H 7%, HSIL 47% and AGC 3%. As to mild cytological abnormalities, LSIL and ASC-US, they account for 43% of those who underwent conization, while the treatment rates were low. The intervals from the screening to the conization were within 6 months in most cases of ASC-H·HSIL·AGC, from 1 year to 2 years in many cases of LSIL and varying from within 3 months to after 4~5 years in the cases of ASC-US.</p><p> Conclusions: It is necessary for all judged to require further examination to undergo detailed examination and adequate follow-up. This leads to saving the possibilities of fertility-preserving treatment for young examinees.</p>

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