A Study of Residual Lesion after Conization in Patients with Carcinoma in Situ of Uterine Cervix

A series of 152 cases of histologically proved carcinoma in situ of uterine cervix is presented. The mean age of the patients was 44.4 years old and the mean parity was 4.2. Total hysterectomy without conization was performed in 29 cases. Conization was performed in 123 cases of which all but three were followed by hysterectomy. Of the 123 coned specimens, 13 showed no evidence of having tumor, 8 showed microinvasive carcinoma; and the remaining 102 were identified as carcinoma in situ. In the 99 cases of conization-proved carcinoma in situ that underwent hysterectomy, the excised uteri were free from residual tumor in 73 cases (73.3%). Twenty three cases were found to have residual carcinoma in situ and 3 cases microinvasive carcinoma. The appearance of residual lesion after conizaiton was found in 26.3% of the total cases. From this study, it is conclused that conization alone is inadequate for the treatment of carcinoma in situ.