[Laser-spectroscopic analysis of pseudocalcium deposits in Fahr's syndrome].

Laser spectrography was used for analysis of cations in vascular and tissue deposits in a case of Fahr's syndrome. The following cations were found: calcium, iron, silica, magnesium, aluminium, copper, zinc, phosphorus. In the tissue outside the deposits only magnesium, iron and aluminum were found, and the degree of blackening of spectral lines was much weaker. The authors think that these observations could contribute to a better knowledge of the aetiology and pathogenesis of Fahr's syndrome.