The Natural History of Human Papillomavirus (HPV) Atypia of the Cervix

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Abstract
Summary: This study examines the natural history of human papillomavirus (HPV) atypia of the cervix in 259 untreated patients who were followed for 3 to 74 months (median 18 months). Progression to cervical intraepithelial neoplasia (CIN) occurred in 41 patients (15.8%) — all but 3 progressions occurred within the first 24 months of follow‐up. In no patient did invasive cancer develop during this study. Persistence occurred in 39.4% and regression in 44.8% patients. An increasing number of regressions were noted with the passage of time. Progression to histologically confirmed CIN which occurred in 23 of 46 (50%) patients in whom both the cytological and colposcopic assessment at the first visit suggested CIN did so significantly more frequently than when either the cytology or colposcopy alone suggested CIN (11 progressions in 83 patients‐13.3%, p < .00001) or when neither cytology nor colposcopy suggested CIN (7 progressions in 119 patients‐5.9%, p < .000001). We recommend that patients with both cytological and colposcopic features suggestive of CIN should be treated even though HPV atypia only is reported on biopsy. Those who are not treated should be followed closely until regression occurs and consideration should be given to treating those patients in whom the abnormality persists longer than 2 years.