This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cervical Carcinoma, Subject name: Gynaecology & Obstetrics
[{'content': 'Treatment of biopsy proven CIN 3 in 50yr old woman: \nSelect and explain. \nA. Conisation, B. Hysterectomy, C. Colposcopy with LEEP, D. Trachelectomy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: When a cytologic specimen suggests the presence of HSIL, colposcopy and directed biopsy should be performed. Although high-grade CIN can be treated with a variety of techniques, the preferred treatment for CIN 2 and 3 is loop electrosurgical excision procedure . Hysterectomy is currently considered too radical for treatment of CIN, however may be offered in presence of a concurrent indication.', 'role': 'assistant'}]