Former President Jimmy Carter said Sunday that an MRI scan earlier in the week showed his cancer is gone.<br />Carter, 91, announced the good news to attendees of a Sunday school class he often teaches at Maranatha Baptist Church in Plains, Georgia.<br />"Went for an MRI this past week and they (doctors) didn't find any cancer at all in the brain," Carter said.<br />Carter revealed in August that he would undergo radiation treatment for several melanoma spots on his brain and liver after he learned a mass removed from his liver was melanoma.<br />Last month, the 39th president said he was feeling well, and tests showed the cancer had not spread any further, the Carter Center, a nonprofit organization he set up after leaving the presidency, said in a statement.