Doctors in Arizona thought a Phoenix-area woman had a possible brain tumor, but it turned out there was something else penetrating her brain – a worm. Rosemary Alvarez started experiencing numbness in her arm and blurred vision. She went to the emergency room twice and had a cat scan, but everything came up clear, MyFOXPhoenix.com reported... : Doctors removed the worm and don't believe Alvarez will have any lingering health problems. No one knows exactly where she picked up the worm –- doctors said worms can come from eating undercooked pork or spread by people who don’t wash their hands...