Characteristics of pigment gallstones: correlation between their clinical classification and results of infrared
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概要
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Seventy-four cases with pigment gallstones were attempted to divide into two groups according to the classification criteria of gallstones advocated by the Japanese Society of Gastroenterology, calcium bilirubinate stones and black stones. On the basis of macroscopic findings,29 cases were defined as calcium bilirubinate stones (Group A),30 cases were black stones (Group C). However, there were remained 15 cases that were equivocal (Group B). Analysis with infrared absorption spectroscopic study were carried out to these three types of stones to measure the concentrations of calcium bilirubinate, black pigment, calcium palmitate and cholesterol. In Group A, the mean concentrations of calcium bilirubinate and calcium palmitate were both significantly higher than those of Group B and C (p<0.001). With respect to the concentration of black pigment, Group B showed a significant increase compared with Group A (p<0.001), as well as marked elevation in Group C. No statistical difference was observed among these three groups in the mean concentration of cholesterol. Based upon these results, it is suggested that pigment gallstones are not feasible to be classified definitely into two categories.
- Japan Biliary Associationの論文
Japan Biliary Association | 論文
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