[Gnathostoma binucleatum (Spirurida: Gnathostomatidae) from the freshwater fish in Tabasco, Mexico].

Human gnathostomiasis is a food-born parasitic disease of relative importance in many countries in Southeast Asia. It is caused by several species of nematodes of the genus Gnathostoma. In Mexico is an emerging public health problem since 1970, when first cases were reported.

Lidocaine spray used to capture a live Clinostomum parasite causing human laryngitis.

This case report describes a patient who developed Clinostomum laryngitis after eating raw fresh-water fish. Parasite removal was performed under general anesthesia using a laryngomicroscopic method. Because it was difficult to capture the worm intact using forceps, it was sprayed with 8% lidocaine solution.