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.
Bile is also stored in the gallbladder. If the bile duct becomes blocked, the bile cannot drain normally and backs up in the liver. Signs of blocked bile ducts include jaundice (yellowing of the skin), dark urine, light stools, itching, nausea and poor appetite. This is a potentially serious condition that needs to be treated. It is possible to relieve the obstruction by inserting a fine plastic drainage tube (catheter) through the skin (percutaneous) into the obstructed bile duct, past the obstruction and into the duodenum.