This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast Ultrasonography and MRI, Subject name: Radiology
[{'content': 'Popcorn calcification is seen in - \nSelect and explain. \nA. Fibroadenoma, B. Fibroadenosis, C. Carcinoma breast, D. None', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Fibroadenoma o Calcifications are common in fibroadenoma of breast, especially in postmenopausal women,o Most of the calcification are coarse and the so called popcorn calcifications are pathognomonic for fibroadenoma.", 'role': 'assistant'}]