Get the latest from TODAY

Sign up for our newsletter
/ Source: TODAY
By TODAY

David Fajgenbaum, a 32-year-old doctor at the University of Pennsylvania, is racing to find a cure for Castleman disease, an illness that’s “like a mix between an autoimmune disease and a cancer.” Fajgenbaum is not only devoting his life to this cause for other patients – he’s been battling the rare and deadly disease himself since 2010. TODAY’s Dylan Dreyer has this week’s Sunday Spotlight.