Australian family physician 1999-Jul
Eosinophilic meningitis. An unusual cause of headache.
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Abstract
Human parasitic infections are uncommon outside the tropical north but common in animals throughout Australia. The rat lung worm, Angiostrongylus cantonensis, can invade the human brain to cause a chronic meningitis with prolonged headache. This condition can be diagnosed by finding a high eosinophil count in cerebrospinal fluid (CFS), the lumbar puncture also provides symptomatic relief. The outcome is usually benign but death has been reported.