Back to TopCauses. There are many causes of cholestasis. Extrahepatic cholestasis occurs outside the liver. It can be caused by: Bile duct tumors. Cysts. Narrowing of the bile duct (strictures) Stones in the common bile duct. Pancreatitis.
What is the meaning of the October birthstone? The word, âopalâ comes from the Greek term âopallos,â which stands for âto see a changeâ in color. It radiates a mysterious interplay of colors, which come out as delicate tints of different shades when observed from different angles.
The color of Octoberâs birthstone is hard to pinpoint. Unlike September or March, the birthstone of October can be found in almost any color. What distinguishes the opal from other stones is the unique play of color and glint of light that sets the opal part from every other gemstone.