Lunden, 63, made the announcement on ABC's "Good Morning
America" program, the show she co-hosted from 1980-97.
"I heard those words that every woman fears and never wants to
hear, 'You have breast cancer,'" Lunden said alongside "GMA"
host Robin Roberts, who herself has had breast cancer.
Lunden, who now works as a health advocate, said the tumor was
found only after an ultrasound exam. She will also undergo
radiation treatment and surgery.
Lunden said she expects to make a full recovery.
"Good Morning America" anchor Amy Robach said in April that she
had completed her final round of chemotherapy for breast cancer
that was diagnosed last year.
(Reporting by Eric Kelsey, editing by Jill Serjeant and Gunna
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