One important result of lake and reservoir enrichment is increased growth of microscopic floating plants, algae, and the formation of dense mats of larger floating plants such as water hyacinths (Photos 1 and 2) and Nile cabbage.
What is percutaneous biliary drainage? Percutaneous transhepatic biliary drainage is a procedure where a small, flexible, plastic tube is placed through the skin into the liver in order to drain an obstructed bile duct system. The liver produces bile which aids digestion of fats.
If the cause of a distal bile duct obstruction is not revealed by US and there is a high suspicion for a pancreatic or periampullary tumor, the next diagnostic test is CT. ERCP (or MRCP) is only the next step when there is a high suspicion of bile duct stones.