title: A clinical study on gallstones in Bolivia.
abstract: To clarify the prevalence of gallstone disease in Bolivia, all the X-ray films of the biliary system in a total of 656 cases taken during 10 months in La Paz were checked. Gallstones were found in 103 cases (15.7%). The ratio of male to female was 1:1.9. Cholecystolithiasis comprised 76.7% of them, while choledocholithiasis was rare. The analysis of gallstones removed surgically by an infrared absorption spectroscopy revealed that cholesterol was main constituent of stones in 62 cases (93.9%) out of 66 cases.
mesh_terms: D000328:Adult; D000368:Aged; D001838:Bolivia; D002758:Cholangiography; D002769:Cholelithiasis / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000378:metabolism; D002784:Cholesterol / Q000032:analysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D002784:Cholesterol