US Senator John McCain has a brain tumor, according to sources at his office, and is assessing possible treatments to cure it. “The senator and his family are reviewing future treatment options with their Mayo Clinic team. These options may include a combination of chemotherapy and radiation, “his office said in the statement.

The 80-year-old Republican candidate for the 2008 presidency of the US government has been recovering at his Arizona home after a blood clot in his left eye. Tissue analysis of this sample indicated the presence of a primary brain tumor.

Meghan McCain’s daughter wrote in her Twitter account words of lamentation at the unexpected news: “My father’s illness has affected us all … Now we are waiting with uncertainty for what will happen,” he added in the statement .