Somerville woman survives 9/11, two cancers to ride first Pan-Mass Challenge

Almost 22 years after Kathy Ball-Toncic ran barefoot from the North Tower on 9/11, she was diagnosed with breast cancer.While her team at Dana-Farber Cancer Institute cannot, definitively, link her disease to the toxic dust she inhaled as she fled the World Trade Center site, she is part of the WTC Health Program. To date, it says more than 44,000 people who were exposed to the WTC site-on or after 9/11--have been diagnosed with cancer. In 2001, Kathy was commuting between Boston and New Yo