Sen. Mazie Hirono, D-Hawaii, announced Tuesday she has kidney cancer, but will continue to work following treatment for the disease.

Hirono said her doctor discovered cancer in her seventh rib and kidney as part of a pre-operative physical before eye surgery.

The first-term senator will undergo treatment at the Medstar Georgetown University Hospital in Washington, D.C. Her right kidney will be removed through a new noninvasive procedure.

"I face this fight with the same determination I've fought for the people of Hawaii. And I never quit, especially when things get tough," Hirono said in a statement.

Senate Minority Leader Chuck Schumer and the Senate Democrats' Twitter account retweeted Hirono's announcement and offered their best wishes.

"Mazie is a great senator & she's approaching this new challenge w/ her usual steadfast determination. We're with her every step of the way," Schumer said.

Hirono is up for reelection in November 2018.