title: [X-ray diffraction study of biliary calculi. Morphological and composition correlations of calculi].
abstract: In this study, we examined the composition of crystallographic structure of biliary stones in 106 patients (27 male, 79 female). The material has been obtained following cholecystectomy. In 70 cases (66%), the monohydrate cholesterol was the main constituent, alone (33%) or in combination with calcium salts (32%). In 52% of the cases, we found presence of vaterite, aragonite and calcite. The anhydrous cholesterol was determined in 28 subjects (26%), alone (9.4%) or associated with calcium salts (16%). Cholesterol was completely absent in 8 cases: of them, 4 presented an aspecific diffrattografic picture and 4 revealed presence of calcium carbonate. Finally, no correlation was found between epidemiological data (sex or age) and macroscopic feature of biliary stones (chemical and morphological structure).
authors.affiliation: Istituto di Clinica Chirurgica II.
authors.forename: N
authors.initials: N
authors.lastname: Bassi
authors.forename: L
authors.initials: L
authors.lastname: Aggio
authors.forename: S
authors.initials: S
authors.lastname: Ghiro
authors.forename: T
authors.initials: T
authors.lastname: Meggiato
authors.forename: F
authors.initials: F
authors.lastname: Di Mario
authors.forename: G
authors.initials: G
authors.lastname: Del Favero
authors.forename: P
authors.initials: P
authors.lastname: Scalon
authors.forename: M
authors.initials: M
authors.lastname: Molin
authors.forename: D
authors.initials: D
authors.lastname: D'Amico
authors.forename: R
authors.initials: R
authors.lastname: Naccarato
mesh_terms: D002118:Calcium / Q000032:analysis; D002763:Cholecystectomy; D002769:Cholelithiasis / Q000032:analysis / Q000175:diagnosis*; D002784:Cholesterol / Q000032:analysis; D005260:Female; D006801:Humans; D008297:Male; D014961:X-Ray Diffraction
chemical_list: D002784:Cholesterol; D002118:Calcium
vernacular_title: Studio diffrattometrico a raggi X della litiasi biliare. Correlazione morfologica e composizione dei calcoli.