A form of visceral larva migrans infection of human tissues caused by the nematode parasite of dogs and cats, Gnathostoma spinigerum. Acquisition is by ingestion of undercooked fish and poultry containing the larvae. The parasite migrates through various body tissues and causes a transient inflammatory response and possibly abscess formation. If the brain is invaded, eosinophilic meningoencephalitis may develop and can be fatal. Travelers to Asia should avoid eating raw or undercooked fish or poultry.