Jennifer Alden discovered her brain tumor by accident, but when it came to surgery to remove it, she left nothing to chance. She met with three brain surgeons and wound up traveling from Los Angeles to San Francisco to have the procedure performed by Dr. Mitchel Berger, UCSF's chair of Neurological Surgery. Berger used a technique he developed at UCSF, called brain mapping, to remove only the tumor while sparing healthy tissue around it that was vital to Alden's brain function.