Canadian Medical Guide > Organisms > Animals > Invertebrates > Helminths > Platyhelminths > Trematoda Terms and Definitions

Trematoda

Medical Definition:	Class of parasitic flukes consisting of three subclasses, Monogenea, Aspidogastrea, and Digenea. The digenetic trematodes are the only ones found in man. They are endoparasites and require two hosts to complete their life cycle.
Guide Notes:	GEN or unspecified; prefer specifics; infection = TREMATODE INFECTIONS; /drug eff: consider also ANTIPLATYHELMINTIC AGENTS; for antigens, coord with ANTIGENS, HELMINTH, for antibodies, coord with ANTIBODIES, HELMINTH
Also Called:	Echinochasmus,Himasthla,Paryphostomum,Troglotrema

Trematoda Categories.

	Dicrocoeliidae - A family of flattened, translucent flukes (TREMATODA) occurring in the gut, gallbladder, bile ducts, liver or pancreatic ducts of amphibians, reptiles, birds, and mammals. (Noble et al., Parasitology: the Biology of Animal Parasites, 6th ed, p188)
	Echinostomatidae - A family of flukes (TREMATODA) characterized by a collar of spines at their anterior end. The body is elongated and is covered with spines, and the two suckers are usually close together. (Noble et al., Parasitology: the Biology of Animal Parasites, 6th ed, p183)
	Fasciolidae - A family of flukes of the class Trematoda occurring primarily in the liver of animals and man. There are six genera: Fasciola, Fasciolopsis, Fascioloides, Tenuifasciola, Parafasciolopsis, and Protofasciola. The adult form of Fasciolopsis occurs in the intestines of pigs and man.
	Heterophyidae - A family of intestinal flukes of the class Trematoda which occurs in animals and man. Some of the genera are Heterophyes, Metagonimus, Cryptocotyle, Stellantchasmus, and Euryhelmis.
	Opisthorchidae - A family of lanceolate liver flukes of the class Trematoda which occurs in animals and man. There are several genera including Amphimerus, Cyclorchis, Delphinicola, Metorchis, Parametorchis, Phocitrema, Clonorchis, and Opisthorchis.
	Paramphistomatidae - A family of flukes of the class Trematoda found in the intestinal tract and liver of animals and man. Some of the genera are Homalagaster, Gastrodiscus, Paramphistomum, Watsonius, Nilocotyle, Gigantocotyle, Gastrothylax, Macropotrema, Ceylonocotyle, Zygocotyle, Cotylophoron, and Calicophoron.
	Schistosomatidae - A family of blood flukes of the class Trematoda which is found in animals and man. It Includes the genera Heterobilharzia, Schistosomatium, Schistosoma, Ornithobilharzia, Bilharziella, Trichobilharzia, Pseudobilharzia, and Austrobilharzia.
	Troglotrematidae - A family of flukes (TREMATODA) usually under 10 mm in length, some being only 1 or 2 mm long. In general they are thick, spinous, or scaly flukes having an oval outline and living in various organs and sinuses of birds and mammals. The genus with the greatest interest is PARAGONIMUS. (From Noble et al., Parasitology: the Biology of Animal Parasites, 6th ed, p191)

Trematoda Medical Definitions and Terms

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