Adenocarcinoma in situ of the cervix: significance of cone biopsy margins

OBJECTIVE: To evaluate the treatment and outcome of patients with adenocarcinoma in situ of the cervix, with special emphasis on cone biopsy margins. METHODS: Sixty-one women with adenocarcinoma in situ of the cervix treated between April 1984 and December 1993 were identified. Medical records and histologic material were reviewed. Mixed lesions with both adenocarcinoma in situ and squamous cervical intraepithelial neoplasia (CIN) were included. RESULTS: The mean age of the patients was 35.9 years. Fifty-five of the 61 (90%) patients had cone biopsies, and 44 of these 55 (80%) subsequently had hysterectomies. Eight women (13%) had associated invasive cancer. Among 50 patients in whom the status of the margins was confirmed, 23 (46%) had positive margins and 27 (54%) had negative margins. Of 23 women with positive margins, 19 had hysterectomies and ten of the 19 (53%) had residual disease in the uterus. Of 27 patients with negative cone margins, 21 had hysterectomies, and seven of the 21 (33%) had residual disease in the uterus. Two women with negative margins who did not have hysterectomies developed recurrent disease. Fifty-five of the total series of 61 patients followed-up for a median of 57 months (range 17-132) had no evidence of disease at last follow-up. CONCLUSION: Women with adenocarcinoma in situ of the cervix often have residual disease in the uterus, regardless of whether the margins on cone biopsy are positive or negative.

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