This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cellular Pathology, Subject name: Pathology
[{'content': 'Psammoma bodies features are all except: \nSelect and explain. \nA. Seen in meningioma, B. Concentric whorled appearance, C. Seen in papillary thyroid carcinoma, D. Seen in teratoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) Seen in teratoma(Ref: R 9th/pg 65; 8th/pg 38)Psammoma bodies (PBs) are concentric lamellated calcified structures, observed most commonly in papillary thyroid carcinoma (PTC), meningioma, and papillary serous cystadenocarcinoma of ovaryThey represent a process of dystrophic calcification', 'role': 'assistant'}]