Gynaecology & Obstetrics Cryosurgery is used in treatment of cervical intraepithelial neoplasia. It is appropriate in all except A Transformation zone lying entirely on ectocervix. B Smooth cervical surface without deep crevices. C Cervical intraepithelial neoplasia -3. D CIN limited to two quadrants of the cervix. 💡 Explanation Cryosurgery is used in treatment of cervical intraepithelial neoplasia. It is appropriate in all except ✓ Correct Answer: C. Cervical intraepithelial neoplasia -3.