Hugo Chavez Says He Needs Cancer Surgery Again Venezuelan President Hugo Chavez is heading back to Cuba on Sunday for more surgery for cancer, announcing on television that the illness has returned after two previous operations, chemotherapy and radiation treatment. Chavez acknowledged the seriousness of his situation in an address Saturday night, saying for the first time that if he suffers complications Vice President Nicolas Maduro should take his place as Venezuela's leader and continue his socialist movement. There are risks. Who can deny it? Chavez said, seated at the presidential palace beside Maduro and other aides. "In any circumstance, we should guarantee the advance of the Bolivarian Revolution," Chavez said. Outside medical experts said that based on Chavez's account of his condition, he is facing a very difficult fight against an aggressive type of cancer. The president, who just returned from Cuba early Friday, said tests had found a return of "some malignant cells" in the same area where tumors were previously removed. Chavez, who has yet to be sworn in for his new term after winning re-election on Oct. 7, said he would return to Havana on Sunday and would undergo the operation in the coming days. Chavez's quick trip home appeared aimed at sending a clear directive to his inner circle that Maduro is his chosen successor. Chavez said his doctors had recommended he have the surgery right away, but that he had told them he wanted to return to Venezuela first. I want to go there. I need to go to Venezuela," Chavez recalled telling his doctors. "And what I came for was this," he said, seated below a portrait of independence hero Simon Bolivar, the inspiration of his Bolivarian Revolution movement. The vice president's expression was solemn as Chavez said that Maduro should become president if any complication were to prevent him from finishing his current term, which concludes in early January. Chavez said that if new elections are held, his movement's candidate should be Maduro. "In that scenario, which under the constitution would require presidential elections to be held again, you all elect Nicolas Maduro as president," Chavez said. I ask that of you from my heart. Chavez held a small blue copy of the constitution in his hands and waved it. The Venezuelan constitution says that if a president-elect dies before taking office, a new election should be held within 30 days and that in the meantime the president of the National Assembly is to be in charge of the government. While he spoke, Chavez was flanked by both Maduro and National Assembly President Diosdado Cabello. Chavez is scheduled to be sworn in for a new six-year term Jan. 10, and he called his relapse a "new battle." This will be his third operation to remove cancerous tissue in about a year and a half. The 58-year-old president first underwent surgery for an unspecified type of pelvic cancer in Cuba in June 2011, after an operation for a pelvic abscess earlier in the month found the cancer.