Lula, who at 80 is Brazil's oldest sitting president and has had ​some previous health scares, is expected to run for a fourth non-consecutive term in October Brazilian President Luiz ​Inacio Lula da Silva has started preventive radiation treatment after being ‌diagnosed with early-stage skin cancer, doctors treating the 80-year-old leftist leader and his office said on Monday.Lula ​had a basal cell lesion removed on ​April 24."It was decided to proceed with ⁠complementary treatment with preventive, superficial radiotherapy ​on the scalp," doctors at the Sirio-Libanes Hospital said in a ​medical note, adding that Lula will maintain his daily activities without restrictions.1 View gallery Brazilian President Luiz ​Inacio Lula da Silva(Photo: Ricardo Stuckert / Brazilian presidency / AFP)A spokesperson for Brazil's presidency told Reuters ​the "small" lesion was diagnosed as early-stage cancer ​and Lula would undergo 15 radiotherapy sessions to prevent ‌further ⁠lesions.Lula is expected to run for a fourth non-consecutive term in October and currently leads right-wing challenger Flavio Bolsonaro in ​several opinion polls for ​a ⁠potential second-round runoff.He is Brazil's oldest sitting president and has had ​some health scares, including emergency surgeries ​in ⁠2024 to treat and prevent bleeding in his head. Lula was treated for throat ⁠cancer ​in 2011.