Gynaecology & Obstetrics Which of the following is the etiologic agent in a 70 year old woman with squamous cell cancer of the vulva ? A Lichen Sclerosus B Human papiloma virus C Immunosuppression D Smoking 💡 Explanation Which of the following is the etiologic agent in a 70 year old woman with squamous cell cancer of the vulva ? ✓ Correct Answer: A. Lichen Sclerosus