Incomplete excision of cervical intraepithelial neoplasia and risk of treatment failure: a meta-analysis.

Background: Over 60,000 women are treated for cervical intraepithelial neoplasia (CIN) each year in England, most by excision. Management of women who have incomplete excision is controversial and the subject of much debate. Consequently, the completeness of excision is often ignored in the planning of subsequent treatment.