India, April 22 -- Tina Knowles is opening up about her secret breast cancer battle. The 71-year-old details her health scare in an emotional new memoir, Matriarch, released on Tuesday. The mother of Beyonce and Solange Knowles confessed in a recent appearance on CBS Mornings that she missed getting her scheduled mammogram during the COVID-19 pandemic. After her appointment was cancelled, she did not reschedule it until last year, when she received her stage 1 cancer diagnosis.

"My doctor told me I had breast cancer. A small tumor in my left breast that was cancerous; the larger tumor in my right breast was benign, but it would also have to go," Knowles wrote in her memoir, per Us Weekly. "She said I was Stage 1A, assuring me my prognosi...