Infestation with fasciola hepatica is not often seen in humans. Only a
few cases have been reported previously, while in our clinic only thr
ee cases have been observed in 20 years. All three cases (two males ag
ed 35 and 40 and a 45-year-old female) were operated on with the possi
ble diagnosis of choledocholithiasis, and parasites were later inciden
tally discovered at operation. In recent years praziquantel has been u
sed with a high rate of success in the medical treatment of this disea
se. We have also prescribed praziquantel for our last two cases in ord
er to prevent recurrence and to kill any parasites that might still re
main after the operation. In the postoperative follow-up a complete cu
re was observed in all cases.