Laser-spectrographic analysis of the cation content in Fahr's syndrome.

The cation content and composition of mineral deposits in cerebral vessels in a case of Fahr's syndrome was studied by laser-spectrographic analysis. It was shown that in addition to Ca and Fe, other minerals such as Mg, Al, and Zn accumulated in pathologic deposits. The occurrence of cations other than Ca and Fe in these deposits had not been previously reported. The observations made in this study may contribute to a better understanding of the etiopathogenesis of Fahr's syndrome.