Summary. The colposcopic and cytological findings at follow‐up of 1000 women treated by laser ablation for cervical intraepithelial neoplasia or human papillomavirus infection at the Regional Department of Gynaecological Oncology, Gateshead, were reviewed. Colposcopy detected six of 27 patients with residual disease compared with cytology which was abnormal in 26 of the 27 and detected 21 as abnormal on the first visit after laser treatment. In our unit invasive disease after laser treatment was never detected solely on initial colposcopic review.
Between August 1985 and November 1988, 475 laser cone biopsies were performed at the Regional Gynaecological Oncology Unit in Gateshead. Of these, 332 were performed for abnormal cervical cytology and unsatisfactory colposcopy. The ncgative cone ratc in this group was 34%. In those with cytological abnormalities up to and including mild dyskaryosis the figure was 64% and there were no cases of invasive disease. In this group the authors have reconsidered the criteria for cone biopsy and suggested biopsy of the visible ectocervical lesion combined with endocervical curettage o r brushing. Those with negative histology or cytological abnormalities less than moderate dyskaryosis should be managed conservatively.
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