Cynthia Nixon, known for her role as feisty attorney Miranda Hobbes on Sex and the City, revealed that she was diagnosed with br**st cancer two years ago.

Nixon, 42, said she had gone for her "completely routine mammogram" in 2006 when she got a call from her gynecologist.

"She says, `Well I have some, it`s not such great news,`" Nixon revealed on Good Morning America Tuesday (Watch here).

Even though she said she felt "scared ... I was very cognizant of it," Nixon said. "If it`s going to happen, this is the best way for it to happen - that it`s found so early, and we can just get right on it."

Nixon said she "made a big point" of telling her two children she had the disease. (Nixon is currently dating NYC-based activist Christine Marinoni, following a 2003 split from beau, Danny Mozes.)

"I basically told them they found some cancer in my right br**st," Nixon recalled saying. "It`s very small and it`s very early.

"I`m going to have an operation, they`re going to take it out, and then we`re going to have six-and-a-half weeks of radiation, every weekday," she went on. "This is what grandma went through, and I`m going to be fine."

Nixon — who said she kept her diagnosis private because "I didn`t want paparazzi at the hospital" — revealed that her mother had also overcome br**st cancer.

"As the daughter of a br**st cancer survivor," knowing my personal risk made me more aware and more empowered when I faced my own diagnosis," she said.