comparison of the clinical , laboratory , and histological features was made between patients with no or rare intraductal polymorphonuclear leukocytes , group a ( 19 cases ) , and those with polymorphonuclear leukocytes in multiple bile ducts ( `` '' microscopic cholangitis '' '' ) , group b ( 4 cases ) .
C0005400
bile ducts
C0008311
cholangiti