This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
[{'content': 'Psammoma bodies may be seen in all of the following, except \nSelect and explain. \nA. Follicular carcinoma of thyroid, B. Papillary carcinoma of thyroid, C. Meningioma, D. Serous cystadenocarcinoma of ovary', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Psammoma Bodies are concentric lamellated calcified structures, said to represent a process of dystrophic calcification. Seen inPapillary carcinoma thyroidPapillary carcinoma (RCC) Serous cystadenoma Meningioma', 'role': 'assistant'}]