Which condition indicates that humans are the accidental intermediate host after ingesting eggs?

Neurocysticercosis is indeed a condition that occurs when humans accidentally ingest eggs of the pork tapeworm, Taenia solium. When the eggs are consumed, they can hatch within the intestines, leading to the migration of larvae to various tissues in the body, especially the brain, where they can form cysts. This condition highlights the role of humans as accidental intermediate hosts because the natural lifecycle of the parasite typically involves pigs as the definitive host where the adult tapeworm resides and produces eggs.

In contrast, the other options involve different parasites and lifecycle patterns that do not fit the description of humans being intermediate hosts through egg ingestion. Trichinella spiralis involves the consumption of undercooked meat from infected animals, leading to a direct infection rather than an intermediate host scenario. Ascariasis is caused by Ascaris lumbricoides, where humans are the definitive hosts, and direct ingestion of the eggs leads to infection but does not involve an intermediate stage as seen in neurocysticercosis. Strongyloidiasis, caused by Strongyloides stercoralis, also involves a direct lifecycle in humans without an intermediate host stage relevant to egg ingestion.