[Study of in situ cancer of the uterine cervix in the Provincial Hospital of Madrid]. / Estudio del cáncer "in situ" de cuello uterino en el Hospital Provincial de Madrid.

Seventy nine cases of in situ cervical carcinoma (CIN III) treated between 1977 and 1985 are studied. CIN III appears ten years before invasive cervical carcinoma, at a mean age of 42.8 years. Parity may be a risk factor by itself or reflect the precocity and frequency of sexual intercourse. The study confirms that most of the times the combination of vaginal cytology and colposcopy attained the diagnosis. The best therapeutical methods are conization and then total hysterectomy, depending on lesion localization, patient age and early needs. Very young patients with lesions that do not reach the endocervical region may be treated by CO2 laser or cryotherapy.