Gynaecology & Obstetrics Choriocarcinoma is differentiated from invasive mole (chorio-adenoma destruens) by: A Presence of high titre of urinary chorionic gonadotrophin B Presence of cannon ball shadow in the lungs C Absence of villi structure on histological examination of the lesion D All of the above 💡 Explanation Choriocarcinoma is differentiated from invasive mole (chorio-adenoma destruens) by: ✓ Correct Answer: C. Absence of villi structure on histological examination of the lesion