Very High GGT

8 years ago I had a blood test and they found very High GGT.  I have had Hepatitis test, Sonogram test of Liver and Bile ducts, and CT scan of Liver to check for Fatty liver, and all turned up negative. I barley drink (3 drinks per month) and I am now 55 years old, 6'-1",  205 pounds, do not really have much stomach fat, and in general good health and no symptoms...  I have been to 2 Liver doctors and neither know what the cause of my High GGT... What do you think it could be??... should I get a Liver Biospy ?....  Over the past 8 years I have had 11 blood tests and the results are below:

SGOT (AST) = ....41....34.....33.....29....56.....44.....22.....43.....35.....25....34
  
SGPT (ALT) =.....70.....68.....??.....51...111....80.....36.....75.....67.....39....65
GGT (GGTP) =...367...273....??....270...499...337...275...376...307...241...283

Date:               Oct-02'...............................July-05'................................Oct-09'



This discussion is related to High GGT level.