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Brown Gallstone |
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Brown Gallstone A pigment gallstone formed from a complex mixture of insoluble calcium salts of unconjugated bilirubin with varying amounts of protein and cholesterol. While black gallstones are found in sterile bile in the gallbladder, brown gallstones are often associated with infection (e.g., with Escherichia coli, Ascaris lumbricoides, Opisthorchis sinenesis). These organisms release beta-glucuronidases, which hydrolyze bilirubin glucuronides; in contrast to black stones Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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