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
Wilson's disease is characterized by ?
assistant
The correct answer is  Ans. is 'c' i.e., Increased copper in liver Diagnosis of Wilson disease The gold standard for diagnosis is liver biopsy with quantitative copper assay - concentration of copper in a liver biopsy sample > 200 mg/g dry weight. Other tests are ? Serum ceruloplasmin level - low Urine copper excretion - increased KF rings DNA Haplotype analysis.