The treatment of carcinoma in situ of the uterine cervix in the mersey regional cancer registry area with some comments on incidence

One thousand and twenty-four patients were registered with carcinoma in situ of the cervix at the Mersey Regional Cancer Registry from 1962 to 1973. The number of new cases reached a peak in the over-35s during 1968-70, but later in the under-35s. Fifty-five per cent of patients were treated initially by hysterectomy and 39% by cone biopsy or amputation. In the former group two patients developed invasive recurrence and one patient in situ recurrence. In the latter group one patient developed invasive recurrence and 15 patients developed in situ recurrence. This evidence is in agreement with other studies and supports the view that cone biopsy is an effective treatment for c. in situ of the cervix.