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': 'Radiological method for staging of Cervical carcinoma is best done with: \nSelect and explain. \nA. MRI, B. Sonosalpingography, C. PET - CT, D. Doppler USG', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Staging in all Gynecological cancers is done surgically except Cancer Cervix where clinical stagings are done Radiologically, PET CT are best to closest actual spread of the cancer. PET scans are increasingly being utilized either alone or in conjunction with CT or MRI to detect metastatic disease. PET may be more useful than other techniques for the detection of abdominal and extra-pelvic disease, with comparable or better sensitivity (76% to 100%) and specificity (94%).', 'role': 'assistant'}]