Eosinophilic myelomeningoencephalitis caused by Angiostrongylus cantonensis: a report of three cases.

Three members of a family developed eosinophilic myelomeningoencephalitis following ingestion of Pila snails. They were father, daughter and son and had similar clinical presentations. Two days after ingestion of snails, they developed a generalized itchy maculopapular rash followed by myalgia, marked paresthesia, fever and headache. Two days later there was weakness of the extremities which was progressive in severity involving the legs more than the arms. They later developed urine retention and cloudiness of consciousness. Two patients progressed to coma, one of whom died after 3 weeks and the other died at home 9 months after the onset. Autopsy of the fatal case revealed multiple tracks and cavities with the presence of Angiostrongylus cantonensis in the brain and various levels of the spinal cord.