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Abstract
Wilson's Disease (WD) is an inherited disorder of impaired hepatic copper metabolism that leads to copper accumulation in organs such as the liver and brain. Using transcranial sonography (TCS), we investigated brain changes in WD patients during de-coppering treatment. Forty-one consecutive treatment-naïve WD patients were classified as having hepatic (WDh; n = 20) or neurological WD (WDn; n = 21) based on symptoms at diagnosis; all patients received either D-penicillamine or zinc sulfate and were observed for 24 months. TCS was performed at regular intervals from study entry (month 0) to month 24. At study entry, bilateral lenticular nucleus (LN) hyperechogenicity was found in 18 patients with WDn and in nine with WDh (p = 0.006). Substantia nigra (SN) hyperechogenicity was found in nine patients with WDn) and four with WDh (p = ns). After 24 months of treatment, bilateral LN hyperechogenicity was still present in 17 patients with WDn and 14 with WDh (p = ns). SN hyperechogenicity was present in one patient with WDn and two with WDh (p = ns). The decrease in the number of patients with SN hyperechogenicity was significant in the WDn group (p < 0.05). LN hyperechogenicity is the most common TCS abnormality in WD patients, and was observed despite two years of de-coppering treatment. SN hyperechogenicity was less common, and decreased after treatment introduction.
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