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
A 40-year-old women presented with a CT scan of the head showing an enlarged sella tursica. Neurological and endocrine work up in detail were found to be normal. The most likely diagnosis is -
assistant
The correct answer is  None