This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
[{'content': 'Most common cause of suprasellar enlargement with calcification in children is – \nSelect and explain. \nA. Craniopharyngioma, B. Astrocytoma, C. Meningioma, D. Suprasellar tuberculoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: "Presence of Suprasellar midline calcification immediately suggests the diagnosis of craniopharyngioma". Craniopharyngioma is the most common cause of suprasellar calcification.', 'role': 'assistant'}]