What are the causes of cerebral paragonimiasis

summary

Brain paragonimiasis is a kind of immunopathological reaction caused by the mechanical injury and metabolites of paragonimiasis adult parasitizing in the brain. It is usually infected after eating raw or undercooked aquatic shellfish, such as freshwater crabs. The adult can enter the skull from the mediastinum along the soft tissue around the internal carotid artery and invade the brain. Paragonimus antigen intradermal test was positive. In acute phase, the number of polymorphonuclear cells was increased, while in chronic phase, the number of lymphocytes was increased. So, what are the causes of brain paragonimiasis? Now let's talk about it.

What are the causes of cerebral paragonimiasis

First, trematode is mainly caused by the migration of larvae or adults in human tissues and tissues. The adult is hermaphrodite, with a mouth and a sucking cup. It can live in many kinds of animals. The clinical manifestations included dizziness, headache, epilepsy, hemiplegia, visual impairment and fever. Often accompanied by cough, chest pain, phlegm with blood or cough rust colored sputum and other symptoms.

Second, the human body is the most suitable destination for Paragonimus. The miracidia invade the first intermediate host freshwater snails and proliferate through the development of metacercariae, female metacercariae and daughter metacercariae. After three months, they develop into cercariae, which invade the body of the second intermediate host crab or Squilla to form cysticercus. People can be infected after eating crabs or Squilla with live cysticercosis.

Third: brain paragonimiasis. In the cyst stage, the damaged brain tissue gradually reacts to form a capsule around the granuloma. The center of the capsule is necrotic and liquefied to form a bluish gray or special brownish gray viscous liquid, in which there may be worms and eggs. In the fibrous scar stage, the worm died or moved to other places, the cyst fluid was absorbed, the granulation tissue was fibrotic or calcified, the involved cortical or subcortical structures were atrophied, and the sulcus and ventricle were enlarged.

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Brain paragonimiasis is a kind of immunopathological reaction caused by the mechanical injury and metabolites of paragonimiasis adult parasitizing in the brain. It is usually infected after eating raw or undercooked aquatic shellfish, such as freshwater crabs. The adult can enter the skull from the mediastinum along the soft tissue around the internal carotid artery and invade the brain.