Former "Good Morning America" co-host Joan Lunden announced that she has breast cancer, with the malignancy found on a breast ultrasound scan.
Lunden made the announcement on June 24 on her blog. She was diagnosed two weeks earlier via breast ultrasound, after her regular annual mammogram came back clear.
"Two weeks ago I went for my annual mammogram as I do every year religiously, and thankfully it was all clear," she wrote. "However, for women who have dense fibrous breast tissue, as I do, often our doctors will recommend an ultrasound as well. My ultrasound ... revealed a tumor in my right breast. After a core biopsy was performed, I heard those words that every woman fears and that I never thought I'd hear: 'You have breast cancer.' "
Lunden wrote that she has already begun chemotherapy.
