Secondary muscular carnitine deficiency following immunosuppressive treatment

Carnitine deficiency syndromes can be classified into two groups: primary carnitine deficiency and secondary carnitine deficiency syndromes. A lipid storage myopathy with carnitine deficiency following an immunosuppressive therapy is described in a young man suffering from a possible polymyositis. After treatment with L-carnitine both biochemical and morphological features recovered. A secondary carnitine deficiency syndrome due to an immunosuppressive therapy is supposed.