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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 77-year-old man is brought to his primary care physician by his daughter. She states that lately, his speech has been incoherent. It seemed to have started a few weeks ago and has been steadily worsening. He is otherwise well; however, she notes that she has had to start him on adult diapers. The patient has a past medical history of hypertension, hyperlipidemia, and type 2 diabetes mellitus. He has been smoking 1 pack of cigarettes per day for over 40 years. His temperature is 98.9°F (37.2°C), blood pressure is 167/108 mmHg, pulse is 83/min, respirations are 12/min, and oxygen saturation is 97% on room air. Physical exam reveals a confused elderly man who does not respond coherently to questions. Cardiac and pulmonary exam is within normal limits. Inspection of the patient's scalp reveals a healing laceration which the daughter claims occurred yesterday when he fell while walking. Gait testing is significant for the patient taking short steps with reduced cadence. Which of the following findings is most likely in this patient?
assistant
Dilated ventricles on MRI