[Recurrent arthritis in a child. A rare manifestation of Wilson's disease]

Wilsons disease is a rare autosomal recessive disorder of copper transportation, which is fatal if not treated. The disease often starts in adolescence, and most common symptoms are due to liver-and/or brain involvement. This paper deals with an adolescent with Wilsons disease. His clinical presentation was joint complaints for almost two years. The final diagnosis was made by mutation analysis. It is stressed that the clinician should consider Wilson's disease in cases of unexplained liver- and neurological involvement as well as cases of repetitive unexplained joint symptoms in the pubertal period.