[Fine-structure roentgen analysis for the determination of gallstone components]

Results of the determination of the chemical composition of human gallstones using X-ray diffraction method are reported. With simple handling it is possible beside identification of some other components to distinguish stones rich or poor in cholesterol already for smallest amounts of sample (greater than or equal to 10 mg, for instance endoscopically obtained material). This is significant with respect to the conservative medicamental therapy of lysis.