Julia Louis-Dreyfus, star of the legendary sitcom Seinfeld, has announced via Twitter that she has been diagnosed with breast cancer.
Ms Louis-Dreyfus, who recently broke the record for the most Emmy wins in the same category, after snagging her sixth trophy for outstanding lead actress in a comedy series for her work on Veep, used her diagnosis as an opportunity to advocate for universal healthcare.
She acknowledged that although she has "the most glorious group of supportive and caring family and friends, and fantastic insurance though [her] union," not every woman diagnosed with cancer would have access to those resources.
Hollywood was quick to react to the news, with most sending best wishes to Ms Louis-Dreyfus and her family, and several supporting her use of her platform to advocate for healthcare reform.
Former Vice President Joe Biden has also offered his message of support.
Anna Kendrick wrote, "F--. F--. I don't think I realized how much I love this woman, who I don't know. Love her more for speaking up for others in this moment."
Kathy Griffin, who recently lost her sister Joyce to cancer, posted a lengthy thread commending Louis-Dreyfus for using her diagnosis to shine a light on universal healthcare, and addressing those responding negatively to Ms Louis-Dreyfus' message.
Fellow comedian Rosie O'Donnell tweeted, "sending love to Julia Louis-Dreyfus reveals breast cancer diagnosis #BEwell."
Debra Messing commended Louis-Dreyfus, writing, "J sending all my healing energy your way. You are incredible to use this moment as an opportunity to support others. Thank you. Much love xd."
Christina Applegate, who is a breast cancer survivor, also reached out, replying, "Mama, find me. Let's talk if you want."
Judd Apatow posted, "Sending you love and strength but it appears you beat us to it and are sending the world love and strength."
Tony Hale, who co-stars with Louis-Dreyfus on Veep, wrote, "We love this woman."