Neurocystocercosis in humans typically results from ingestion of eggs from which organism?

Neurocysticercosis in humans is primarily caused by the ingestion of eggs from Taenia solium, which is the pork tapeworm. When humans consume undercooked pork containing cysticerci (larval stage), they can develop a tapeworm infection. However, the concern arises when a human accidentally ingests the eggs of Taenia solium, which can occur through contamination of food or water with feces from an infected individual. Once ingested, these eggs hatch in the intestines, and the larvae can penetrate the intestinal wall, eventually migrating to various tissues, including the central nervous system, leading to neurocysticercosis.

The other organisms listed are not associated with neurocysticercosis. Ascaris lumbricoides causes ascariasis, a different intestinal parasitic disease. Echinococcus granulosus is responsible for cystic echinococcosis, which primarily affects the liver and lungs rather than the brain. Ancylostoma caninum, a type of hookworm, typically causes anemia and gastrointestinal issues, not neurocysticercosis. Thus, the connection between Taenia solium and neurocysticercosis establishes it as the correct answer for this