Neurocysticercosis - Causes

Causes of Neurocysticercosis / Cysticercosis of Brain / Pork Tapeworm

Human infection is caused by the ingestion of the eggs of the pork tapeworm (T. solium) through contaminated water or food.

Neurocysticercosis is a dangerous complication of the parasitic larvae (cysticercus) when it develops outside the intestinal tract.

The eggs of T.solium disintegrate and leaves the intestine through the portal venous system. They are dispersed throughout the body where they develop to form cysticerci.

Location of cysts in the body in the decreasing order of frequency are-

1. The Central Nervous System
2. Subcutaneous tissues and muscle
3. Eye
4. It rarely affects other tissues.

Neurocysticercosis / Cysticercosis of Brain / Pork Tapeworm - References

1. Parasites - (http://www.cdc.gov/Ncidod/dpd/parasites/ cysticercosis/factsht_cysticercosis.htm)
2. Bern C, Garcia HH, Evans C, Gonzalez AE, Verastegui M, Tsang VC, et al. Magnitude of the disease burden from neurocysticercosis in a developing country.Clin Infect Dis 1999;29:1203-9.
3. Sarti E, Schantz PM, Plancarte A, Wilson M, Gutierrez IO, Lopez AS, et al. Prevalence and risk factors for Taenia solium taeniasis and cysticercosis in humans and pigs in a village in Morelos, Mexico. Am J Trop Med Hyg 1992;46:677-85.
4. Medina MT, Rosas E, Rubio-Donnadieu F, Sotelo J. Neurocysticercosis as the main cause of late-onset epilepsy in Mexico. Arch Intern Med 1990;150:325-7.
5. International League Against Epilepsy. Relationship between epilepsy and tropical disease. Epilepsia 1994;35: 89-93.
6. Eucestoda - (http://en.wikipedia.org/wiki/Tapeworm)



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