Yankton, South Dakota native and long-time NBC News special correspondent and former Nightly News anchor, revealed Tuesday he was diagnosed at the Mayo Clinic with multiple myeloma.

In a statement released Tuesday, Brokaw said, "With the exceptional support of my family, medical team and friends, I am very optimistic about the future and look forward to continuing my life, my work and adventures still to come. I remain the luckiest guy I know."

Brokaw is continuing his work for the NBC, including contributions to the Winter Olympics coverage in Sochi.

His doctors are encouraged by his progress.

Brokaw stepped down from the NBC Nightly News in 2004.

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