Clinical Evaluation of Women with Low Grade Squamous Intraepithelial Lesion on Pap Smears

Kang, Ok Rim; Kim, Tae Jin; Hahm, Kyoung Ryul; Lee, Young Ah; Lim, Kyung Taek; Chung, Hwan Wook; Lee, Ki Heon; Kim, Hy Sook; Park, Chong Taik; Park, In Sou; Shim, Jae Uk

Abstract

The purpose of this study was for clinical evaluating those women with low grade squamous intraepithelial lesions (LSIL) who have been detected on Pap smears. We analyzed 279,270 Pap smears, from January 1994 to August 1997, of which 703 cases were identified as LSIL, and their medical records were reviewed retrospectively. Among them, 616 cases were able to follow-up by altered methods (repeated Pap smear only vs. histologic examination) and their efficacy for detecting more significant lesion (high grade squamous intraepithelial lesion: HSIL or invasive cancer) were also compared. The results were as follows; 1. The frequency of LSIL on Pap smears was approximately 0.25%. 2. The mean age was 39 years (range 18 ~70 years). 3. Most of the gross finding of the cervix were normal or mild erosion. 4. Most of symptom was asymptomatic, or nonspecific. 5. Eighty-seven women with LSIL on initial Pap smears, have performed repeated Pap smears. 74 (85.1%) was normal, 7 (8.0%) was ASCUS, 6 (6.9%) was LSIL. Remained 529 women had subsequently histologic examination such as colposcopic directed biopsy or cone knife biopsy. These histologic results showed 192 (36.3%) with normal, 258 (48.8%) with LSIL, 77 (14.6%) with HSIL, 2 (0.4%) with microinvasive carcinoma. Based on the results in this study, we emphasize the importance of regular screening procedures for early detection of cervical lesions because there was no specific clinical characteristics in women with cytologic diagnosis of LSIL. In addition, we recommened colpo-scopic directed biopsy or cone knife biopsy as follow-up evaluation method in women with LSIL on initial Pap smear for detecting more significant cervical lesion.