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 28-year-old woman is brought to the physician because of progressive difficulty walking, slowed speech, and a tremor for the past 5 months. Her grandfather died of bleeding esophageal varices at the age of 42 years. She does not drink alcohol. She is alert and oriented but has a flat affect. Her speech is slurred and monotonous. Examination shows a broad-based gait and a low-frequency tremor of her left hand. Abdominal examination shows hepatosplenomegaly. A photograph of the patient's right eye is shown. Further evaluation of this patient is most likely to show which of the following findings?
assistant
Low serum ceruloplasmin concentration