[Occult cervical cancer developing after diagnostic-therapeutic conization of CIN 3]

A case of the so called occult cervical cancer which developed 2 years after the conisation performed in a 45-year old woman on account of CIN 3 has been described. Cancer was detected in the operative specimen of the removed uterus. Hysterectomy was performed on account of the progressive form of the myomas. The multiple colposcopy and cytological follow-up examination after conisation was always negative, just as the histological examination of the tissue specimen of the cervical canal. The hypothetical course of the development of the cancer has been discussed. In connection with the above findings a modification of the conisation technique, especially in older women, is suggested.