Efficacy Study of Diathermy Cone Biopsy for the Treatment of Cervical Intraepithelial Lesion

Straight wire excision of transformation zone is a electrosurgical conization method,which uses a straight wire electrode as a knife to remove the dysplastic epithelium of the cervix.

LLETZ cone is a electrosurgical conization method, which is performed with a large loop electrode of 20-25 mm depth. The loop is applied to the cervix outside the lateral margin of TZ and brought slowly to the controlateral TZ margin.