Sad news for Julia Louis-Dreyfus fans: the 56-year-old actress and comedienne has been diagnosed with breast cancer.

WENN.com reports that the ‘Seinfield’ star broke the news to her fans in an uplifting tweet on Thursday, Sept. 28.

Louis-Dreyfus revealed she’s determined to fight the disease with the support of family and friends.

“1 in 8 women get breast cancer. Today I’m the one,” she tweeted.

Louis-Dreyfus made Emmy Awards history in Los Angeles earlier this month with her sixth Outstanding Lead Actress in a Comedy Series win for Veep, becoming the star with the most wins for the same role.

Louis-Dreyfuss has been married to the same man, Brad Hall, for 30 years. They have no children.

She is best known for her stand-up comedy work on television’s Saturday Night Live, Seinfeld, and The New Adventures of Old Christine. She is currently starring in Veep.

Louis-Dreyfus also has an impressive resumè of movie roles and a plethora of nominations and awards, including a Golden Globe Award and seven Screen Actors Guild Awards.

Photo by WENN.com