Former President Jimmy Carter has been diagnosed with cancer.

FOX News Radio's Jared Halpern has more from Washington:

A recent liver surgery revealed widely spread cancer... Former President Jimmy Carter has revealed in a statement. He says he is rearranging his schedule to undergo treatment at Emory Healthcare in Atlanta, where he lives.

Carter announced earlier this month he had surgery to remove a small mass from his liver. Carter says it's not known where the cancer originated... noting only the liver is a place cancer spreads, but is less commonly the primary source.

Carter is 90-years-old. He was the 39th President, spending his time since leaving office heading the Carter Center, a foundation promoting health care and democracy around the globe.

In Washington, Jared Halpern, FOX News Radio.