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': 'Which of these is not a sign of increased ICT – \nSelect and explain. \nA. Erosion of dorsum sella, B. Sutural diastasis, C. Ballooning of sella, D. Copper-beaten appearance', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ballooning of sella is seen in intrasellar neoplasm or empty sella syndrome.', 'role': 'assistant'}]