Although biliary ascariasis is common, the hepatic variety is rare. The condition of a 2-year-old Chinese boy with hepatic ascariasis, proven by biopsy, was managed successfully with operative evacuation of the foci in the liver and piperazine citrate and diethylcarbamazine citrate treatment. Although he became well during the three weeks in which diethylcarbamazine therapy was given, this is not necessarily a claim for the specificity of this anthelmintic for hepatic ascariasis.