black gallstone

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black gallstone2016-11-23T00:19:37+00:00

black gallstone

black gallstone in gallbladder image from New Medical Terms

black gallstones in gallbladder

SURGERY

A gallstone composed of bilirubin polymers mixed with mucin glycoprotein matrix. They are most common in a background of cirrhosis and chronic haemolysis, as occurs in sickle cell anaemia or thalassaemia.

Black gallstones comprise 10%-90% of all gallstones, depending on the population studied, and have more calcium, carbonate and unmeasured residue, but less cholesterol and fat than other gallstones. 

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