Gall-stone composition and biochemical alterations in the serum of patients with cholelithiasis

The levels of cholesterol, calcium and bilirubin were determined in the serum and gall stones in 47 cases with cholelithiasis. The mixed stones were observed in 87.5%, high cholesterol stone in 8.5% and high bilirubin stones in 4.2%. Serum and stone cholesterol levels were inversely proportional and the bilirubin levels were directly proportional to each other.