You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is All of the following are true about Wilson disease, except and explain in detail?
There is impaired biliary copper excretion, resulting in positive copper balance, hepatic copper accumulation. Excess hepatic copper leads to liver damage, which begins as early as three years of age. Serum copper levels are usually lower than normal because of low blood ceruloplasmin. As the disease progresses, non ceruloplasmin serum copper ("free" copper) levels increase which leads to copper buildup in other pas of the body, such as the brain, leading to neurologic and psychiatric disease. Reference: Harrisons Principles of Internal Medicine, 18th Edition, Page 3188