This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological oncology, Subject name: Gynaecology & Obstetrics
[{'content': 'A 25 year old married nullipara undergoes laparoscopic cystectomy for ovarian cyst which on histopathology reveals ovarian serous cystadenocarcinoma. What should be the next management? \nSelect and explain. \nA. Serial Ca-125 measurement and follow-up, B. Hysterectomy and bilateral salphingo oophorectomy, C. Hysterectomy + Radiotherapy, D. Radiotherapy', 'role': 'user'}, {'content': "Answer: A \nExplanation: The ovarian enlargement should be assessed by serum CA-125 and transvaginal sonography An ovarian enlargement >8cm during child bearing period deserves carefull follow up CA 125 value >35u/ml is suggestive of epithelial ovarian cancer D.C.DUTTA'S TEXTBOOK OF GYNECOLOGY,Pg no:377,6th edition", 'role': 'assistant'}]