From Inside Edition.

Dayton Frederick from Wisconsin is battling one of the rarest and most aggressive cancers in the world, for the second time. The 23-year-old’s battle began in October of 2021 with a primary cardiac sarcoma diagnosis. After two open-heart surgeries and months of treatment, the cancer has returned in a different location. "I’m not going down like this," Dayton told Inside Edition’s Andrea Swindall.