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: Surgery
[{'content': 'False about pituitary adenoma: \nSelect and explain. \nA. It is the most common cause of hyperpituitarism, B. Reticular stain is positive with pituitary adenoma, C. It is associated with MEN-1 syndrome, D. All are true', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Absence of reticulin stain can differentiate pituitary adenoma from pituitary hyperplasia.', 'role': 'assistant'}]