Doctors told local media that the pupal parasite burrowed in the brain of Luis Ortiz, 26, a student in Sacramento, came close to taking his life, news reports said Thursday. The worm was forming in a cyst that blocked the flow of water to chambers in Ortiz's brain, “like a cork in a bottle,” his neurosurgeon Dr. Soren Singel told the Napa Valley Register newspaper. Ortiz, who had gone to the hospital emergency room complaining of terrible headaches and nausea, eventually slipped into a coma, and required emergency surgery to remove the larvae.
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US man’s headache caused by tapeworm larvae
