Sen. John McCain (R-Ariz.) has been diagnosed with a brain tumor, his office said Wednesday.
The Mayo Clinic Hospital in Phoenix said tests revealed "a primary brain tumor known as a glioblastoma" that was associated with a blood clot above his left eye that was removed last week.
"The Senator and his family are reviewing further treatment options with his Mayo Clinic care team," said the hospital in a statement. "Treatment options may include a combination of chemotherapy and radiation."
McCain, 80, was treated for the blood clot last week. His office announced last Saturday that he would be away from the Senate all of this week.
"The Senator's doctors say he is recovering from his surgery 'amazingly well' and his underlying health is excellent," the hospital said in its statement.