system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Choose the appropriate lettered structure in this MRI scan showing a transaxial section through the head. Which structure may be obliterated by a pituitary tumor?
assistant
The correct answer is  (c) The suprasellar cistern can be obliterated by a pituitary tumor.