[Methyl-ter-butyl ether (MTBE) therapy of cholesterol biliary calculosis. First long-term controls (up to 22 months)]

The results and clinical and instrumental examinations of 12 patients at least 6 months after MTBE treatment for cholesterine biliary calculosis are presented. No recurrence of stones or alterations to the biliary ways or duodenal mucosa attributable to MTBE were encountered.