Beyoncé’s mother, businesswoman Tina Knowles, discussed her breast cancer diagnosis during an interview with “CBS Mornings” co-host Gayle King posted on Monday. Knowles, 71, said her physicians found two tumors in her left breast - one benign and the other with Stage 1 cancer - during a mammogram appointment last year.

In "Matriarch," a memoir from Tina Knowles, the mother to Beyoncé and Solange Knowles reveals she was diagnosed with breast cancer last year. "I've always tried to take care of myself. I just… was in disbelief,