[Chondrocalcinosis and Bartter syndrome].

A patient presenting with acute left-knee arthritis was diagnosed as having articular chondrocalcinosis. Routine laboratory tests motivated by a history of muscular cramps and weakness revealed hypokalemia and hypomagnesemia. Further investigations showed Bartter's syndrome. The characteristics of Bartter's syndrome and chondrocalcinosis and the relationship between the two diseases are developed.