Fascioliasis is a rare infectious disorder caused by parasites. These parasites are liver flukes that live in plant-eating animals. Liver flukes can be found on water plants in certain parts of the world. When the parasite invades the liver, bile passages may be blocked. A subdivision of Fascioliasis called Halzoun Syndrome affects the throat (pharynx). This infection can usually be controlled and/or cured with timely treatment.