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: Medicine
[{'content': 'Foster Kennedy syndrome is classically described inassociation with: \nSelect and explain. \nA. Craniopharyngioma, B. Pituitary adenoma, C. Olfactory groove meningioma., D. Medulloblastoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer is C (Olfactory groove meningioma): Foster Kennedy syndrome is typically described in association with olfactory groove meningioma. The Foster Kennedy syndrome consisting of anosmia accompanied by unilateral ipsilateral optic atrophy and contralateral papilledema may be caused by any large baso-frontal or orbito-frontal tumors. It has typically been associated with olfactory groove or sphenoid ridge masses especially meningiomas and has classically been described in patients with olfactory groove meningiomas.', 'role': 'assistant'}]