 On 9 September 2010, Paula Rousseff gave birth to Rousseff's first grandchild, a boy named Gabriel Rousseff Covolo, in the city of Porto Alegre, during the 2010 presidential campaign of her mother.After the last debate with four other candidates, on 30 September 2010, in the city of Rio de Janeiro, which was aired on national TV, Rousseff flew to Porto Alegre for the christening of Gabriel in the Roman Catholic Cathedral on 1 October 2010.At a press conference on 25 April 2009, Rousseff revealed that she was undergoing treatment to remove an early-stage axillar lymphoma, a cancer in the lymphatic system, which was detected in her left armpit during a routine mammogram.