The revelation is part of her new memoir,Matriarch, released on Tuesday (April 22).
Late last year, she underwent surgery to remove the tumor.
Im doing great, the mom of two said.
Cancer-free and incredibly blessed that God allowed me to find it early.
I struggled with whether I would share that journey [in the book] because Im very private.
But I decided to share it because I think its a lot of lessons in it for other women.
And I just thought I had done it.
So you cannot play around with that.
Her superstar daughter took it well and stayed positive after thediagnosis.
My girls became my team, she said.
Tina is now healthier and has gained a deeper appreciation for life following her health ordeal.
I want to give people hope.
What scares me now is not making the best of every day that I have left in this life.
I didnt know that there was a stage 0.
I could have caught this at stage 0 if I had not missed my mammogram.
The American Cancer Societyrecommends annual mammograms for women over the age of 45.
Tune in tomorrow for their full conversation.
Check out the results: