Cytological Follow-Up of Cervical Intraepithelial
Neoplasia 1 after Initial Management During 2-Year
Period: Bhumibol Adulyadej Hospital Experience
Phaliwong P, MD¹, Pariyawateekul P, MD¹, Khuakoonratt N, MD¹, Sirichai W, MD¹, Bhamarapravatana K, PhD²,
Suwannarurk K, MD³
Affiliation : ¹ Gynecologic Oncology Unit, Department of Obstetrics and Gynecology, Bhumibol Adulyadej Hospital, Bangkok, Thailand ² Department of Preclinical Science, Faculty of Medicine, Thammasat University Hospital, Bangkok, Thailand ³ Gynecologic Oncology Unit, Department of Obstetrics and Gynecology, Faculty of Medicine, Thammasat University Hospital, Bangkok, Thailand
Objective: To evaluate the frequency of cervical cytological results in patients diagnosed as low-grade squamous intraepithelial
lesion (LSIL) in cytology report between women younger than 30 and woman 30 or older after initial management and the
completed 2-year follow-up to suggest the proper management for Thai women.
Materials and Methods: The present study was retrospectively conducted at Bhumibol Adulyadej Hospital, Bangkok, Thailand between January 2011 and December 2016. The medical records of 279 patients whose cervical cytology reported LSIL were reviewed. The prevalence of silent high grade cervical intraepithelial neoplasia (CIN 2/3) in LSIL cytology result was determined. The results of the cervical cytology after the patients completed the 2-year follow-up were evaluated.
Results: During the present study period, 279 cases of LSIL in cytology result were enrolled. In women with LSIL in the cytology report, two-third were in pre-menopausal status. The prevalence of CIN 2/3 in LSIL cytology in women younger than 30 and 30 or older were 11.9% and 11.2%, respectively. At 2-year follow-up, around 97% of the patients who completed the follow-up had a spontaneous regression of the disease in both aged groups. Three percent of cases (3/85) had persistent disease in women 30 or older only. There was no progressive disease in the present study.
Conclusion: Silent CIN 2/3 in LSIL cytology in the present study were high. Colposcopy should be recommended for diagnosis and follow-up in this setting. Abnormal Pap at 2-year follow-up was around three percent, therefore, abnormal cytology was still a problem. Continuous close cytology follow-up is still recommended.
Received 11 Mar 2019 | Revised 18 May 2020 | Accepted 19 May 2020
doi.org/10.35755/jmedassocthai.2020.07.9949
Keywords : Low-grade squamous intraepithelial lesion, LSIL, Cervical intraepithelial neoplasia, CIN, Cytology
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