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.
percutaneous nephrostomy insertion of a catheter through the skin and into the renal pelvis under the guidance of fluorography or ultrasonography; performed for relief of obstruction and to gain access to the upper urinary tract for a variety of procedures, such as dilation of strictures or removal of calculi.