What is the pathology of Fasciola hepatica?

What is the pathology of Fasciola hepatica?

Parasites – Fascioliasis (Fasciola Infection) Fascioliasis is a parasitic infection typically caused by Fasciola hepatica, which is also known as “the common liver fluke” or “the sheep liver fluke.” A related parasite, Fasciola gigantica, also can infect people.

What is the relation between Fasciola and liver fluke?

Fascioliasis is an infectious disease caused by Fasciola parasites, which are flat worms referred to as liver flukes. The adult (mature) flukes are found in the bile ducts and liver of infected people and animals, such as sheep and cattle.

How does Fasciola attach itself to liver?

The fluke possesses a powerful oral sucker at the end the anterior cone and a ventral sucker at the base of the cone which allows it to attach to the lining of the bile ducts.

What organism causes a Fasciola infection?

Fasciolosis is caused by two digenetic trematodes F. hepatica and F. gigantica. Adult flukes of both species are localized in the bile ducts of the liver or gallbladder.

What parasites affect the liver?

Liver flukes are parasites that can infect humans and cause liver and bile duct disease. There are two families of liver flukes that cause disease in humans: Opisthorchiidae (which includes species of Clonorchis and Opisthorchis) and Fasciolidae (which includes species of Fasciola).

What are the characteristics of Fasciola hepatica?

Adults of Fasciola hepatica are large and broadly-flattened, measuring up to 30 mm long and 15 mm wide. The anterior end is cone-shaped, unlike the rounded anterior end of Fasciolopsis buski. Adults reside in the bile ducts of the liver in the definitive host.

What are the general characteristics of liver fluke?

The body of liver flukes is leaf-like and flattened. The body is covered with a tegument. They are hermaphrodites having complete sets of both male and female reproductive systems. They have simple digestive systems and primarily feed on blood.

How is liver fluke adapted parasitism?

The organism adapt according to its host environment. The liverfluke has flat body and simple digestive system to directly obtain food from its host. The ascaris develop the adhesive like structure to attach with the host body. The ascaris modify its physiology to simple and lost some body parts.

What causes parasites in the liver?

A liver fluke is a parasitic worm. Infections in humans usually occur after eating contaminated raw or undercooked freshwater fish or watercress. After liver flukes have been ingested, they travel from your intestines to your bile ducts in your liver where they then live and grow.

Can parasites cause an enlarged liver?

Symptoms of Liver Fluke People can get infected with liver flukes after swallowing the parasite, most often by eating raw vegetables or drinking contaminated water. You may also show symptoms like: Enlarged liver.

Which type of digestion is shown in liver fluke?

They have simple digestive systems and primarily feed on blood. The anterior end is the oral sucker opening into the mouth. Inside, mouth lead to a small pharynx which is followed by an extended intestine that runs through the entire length of the body.

How do liver flukes damage the liver?

Migratory flukes may lead to liver inflammation, hemorrhage, necrosis, and fibrosis. Fascioloides magna infections in sheep and goats can be fatal as the result of just one fluke tunneling through hepatic tissue. In cattle, infections are often asymptomatic because of the host’s encapsulation of the parasite.

What type of parasite is a liver fluke?

When is a case of Fasciola hepatica accepted as fascioliasis?

Comment: When clinical, histopathological and laboratory findings are evaluated together, the case can be accepted as fascioliasis. Clinicopathological correlation is recommended. Which of the following findings / complications of Fasciola hepatica is more common than others?

What is another name for the organism Fasciola hepatica?

This article is about the organism. For the infection, see Fasciolosis. Fasciola hepatica, also known as the common liver fluke or sheep liver fluke, is a parasitic trematode (fluke or flatworm, a type of helminth) of the class Trematoda, phylum Platyhelminthes.

What can we learn from the Fasciola hepatica genome?

“The Fasciola hepatica genome: gene duplication and polymorphism reveals adaptation to the host environment and the capacity for rapid evolution”. Genome Biology. 16 (1): 71. doi: 10.1186/s13059-015-0632-2.

Is Fasciola hepatica a sister species to flukes?

These two flukes are sister species; they share many morphological features and can mate with each other. Fasciola hepatica occurs in the liver of a definitive host and its lifecycle is indirect.