Washington (CNN)Former President Jimmy Carter had a "small mass" removed from his liver during surgery Monday, his office said.
Jimmy Carter undergoes liver surgery
The surgery at Emory University Hospital "proceeded without issues, and the prognosis is excellent for a full recovery," according to a statement from the Carter Center, the Atlanta not-for-profit the former president opened after leaving the White House.
Carter, 90, is the second-oldest living president but has led an active post-presidency, recently releasing a new autobiography, "A Full Life," and promoting it in media appearances.
The former President has experienced some health concerns before. He cut a trip short to Guyana in May because he "was not feeling well."