This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pathology (Carcinoma Ovary), Subject name: Gynaecology & Obstetrics
[{'content': 'Pseudomyxoma peritonei occurs due to: \nSelect and explain. \nA. Mucinous cystadenoca ovary, B. Ca colon, C. Adenoma stomach, D. Pancreatic adenocarcinoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans: A (Mucinous cystadenoca ovary) Ref: Shows Textbook of Gynecology 15th ed pg 375Explanation:MUCINOUS TUMOURS OF OVARYMultiloculated cyst lined by columnar epitheliumCut surface shows multilocular and honey comb appearanceCan grow to large size 5 to 10 kgs. pedunculated.Usually unilateral (Bilateral in 5% cases)Usually Benign (5 to 10% malignant).Bilateral -- metastasis from GI tract, mucocele of appendix, primary adenoca appendix.In women 30 to 60 years.Has a glistening surface.If tumor ruptures it may lead to formation of pseudomyxoma peritonei and viscera show extensive adhesions.Appendicectomy prevents this condition as mucocele of appendix often causes this complication.', 'role': 'assistant'}]