Dave Coulier, 65, announced on Tuesday that he has stage 3 non-Hodgkin lymphoma.
The actor and comedian, best known for his role as Joey Gladstone in "Full House" from 1987 to 1995, said he was diagnosed in October after experiencing an upper respiratory infection caused by major swelling in his lymph nodes.
"Three days later, my doctors called me back, and they said, ‘We wish we had better news for you, but you have non-Hodgkin lymphoma, and it's called B cell, and it's very aggressive,'" he told People.