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 alternate birthstone for October is the tourmaline, a gemstone that exhibits the broadest spectrum of gemstone colors. Gem-quality forms of this mineral have in the past been misidentified as rubies, emeralds and sapphires.