Specifically, the New Jersey Nets radio play-by-play man says he suffers from facioscapulohumeral dystrophy, or FSHD, which is a form of muscular dystrophy. So he's starting a foundation bearing his name, hoping to raise awareness of and "[eradicate] the life-altering effects of FSHD."
http://www.nba.com/nets/news/Carrino_Foundation_Release_110408.html
http://www.nba.com/nets/news/Carrino_Foundation_Release_110408.html