Just months after beating cancer, Detroit-born comedian Dave Coulier is once again facing a cancer diagnosis.

The "Full House" actor revealed on Tuesday's "Today" show that he is undergoing treatment for tongue cancer, unrelated to his previous bout with stage 3 non-Hodgkin lymphoma.

"In October of this year, I went in for a PET scan, just a routine check-up, and something flared on the PET scan. It turned out that I have P16 squamous carcinoma at the base of my tongue," Coulier, 66, told "Today's" Craig Melvin. "So I said to the doctors, I said, 'Well, did this happen because of the lymphoma?' And they said, 'Totally unrelated.'"

Coulier was told he had to undergo 35 rounds of radiation, and he says he'll be done on Dec. 31.

The St. Clair Shores native said the prognosis is "very go

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