<prompt> Mercury poisoning is characterized by all ExceptTremorKF ringPCT necrosisSalivation  <response>: Kayser-Fleischer ring A golden brown or green ring is seen in the peripheral descements membrane is a diagnostic feature of Wilsons disease. This will also be seen in chronic exposure to copper. Ref: FORENSIC MEDICINE AND TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 430 