Hysterectomy for Treatment of CIN.

: The objective of this investigation was to determine the percentage of microinvasive and invasive cancers found when CIN 3 was treated by hysterectomy. The postoperative histologic findings of all patients with CIN 3 treated by conization or hysterectomy were analyzed. In 295 patients treated by conization, 14 (4.75%) microinvasive and 11 (3.73%) invasive cancers were found. Histologic analysis of 106 hysterectomy specimens revealed microinvasive carcinoma in 11 (10.38%) and invasive carcinoma in 17 (16.04%) cases. The finding of unexpected invasive cervical cancer in hysterectomy specimens seems significantly higher compared with conization. One must be cautious to avoid hysterectomy as the primary mode of treatment for women with coincident uterine pathology, postmenopausal women, or those who do not desire further reproduction. Hysterectomy as a mode of treatment for CIN 3 should be performed only if the existence of invasive cancer was excluded with certainty.