Abstract
Glaidia lamblia has a world-wide distribution and lives in the small intestine, especially in the duodenum and occasionally in the gall bladder of man. Severe infection with G. lamblia may cause edema of the ampulla of Vater, cholecystitis or gastro-intestinal symptoms.
Recently the authors experienced two cases of G. lamblia infection in Aomori Prefecture which caused biliary disorder.
Case 1: A 41-year-old male farmer. He complained of epigastric pain with nausea and vomiting. A lot of trophozoite of G. lamblia was detected from the duodenal juice. He was treated by chloroquine and no protozoa were found after the administration, 750 mg per day for 5 days.
Case 2: A 52-year-old male barber. He complaind of epigastric pain and a lot of G. lamblia trophozoites were found from the duodenal juice. As a treatment, 1.0 g of sigma-mycin was administered for 6 days, and he was successfully treated.
These two cases are thought to be infected in Japan, but Giardia lamblia infection are being imported more frequently as many people in tropical areas either enter or return to Japan. Therefore, the attention should be paid for the G. lamblia infection.
