John McCain
Sen. John McCain (R-AZ) speaks to reporters on Capitol Hill, in Washington, D.C., May 17, 2017. Getty Images/ Mark Wilson

Hours after Sen. John McCain was diagnosed with brain cancer, his office released a statement Wednesday night after consulting the Mayo Clinic Hospital in Phoenix, announcing the senator was doing "amazingly well" and his condition was "excellent."

According to a CNN report, the 80-year-old Arizona senator was diagnosed with primary glioblastoma which is a type of brain tumor, doctors at the clinic said. The report also stated that McCain underwent a surgery Friday at the Mayo Clinic Hospital to get a blood clot removed from his brain.

The American Brain Tumor Association (ABTA), stated that glioblastoma, also known as GBM, is a type of tumor that arises from astrocytes — the star-shaped cells that make up the “glue-like,” or supportive tissue of the brain. These tumors are usually malignant as the cells reproduce quickly and are supported by a large network of blood vessels.

Read: What Is A Craniotomy? John McCain Has Skull Opened To Remove Blood Clot Above Eye

The full statement released by McCain's office read:

On Friday, July 14, Sen. John McCain underwent a procedure to remove a blood clot from above his left eye at Mayo Clinic Hospital in Phoenix. Subsequent tissue pathology revealed that a primary brain tumor known as a glioblastoma was associated with the blood clot.

Scanning done since the procedure (a minimally invasive craniotomy with an eyebrow incision) shows that the issue of concern was completely resected by imaging criteria.

The Senator and his family are reviewing further treatment options with his Mayo Clinic care team. Treatment options may include a combination of chemotherapy and radiation.

The Senator’s doctors say he is recovering from his surgery ‘amazingly well’ and his underlying health is excellent.

While McCain’s family was by his side, Republicans and Democrats poured in their wishes and support for the Arizona senator on Twitter. Here’s a compilation of some of the tweets:

President Donald Trump was quick to offer his thoughts and prayers to McCain and his family. Moreover, the White House Office of the Press Secretary also issued a statement on behalf of the president.

Former President Barack Obama too took to Twitter to express his support for the senator.

Former Secretary of State Hillary Clinton and her husband, the former President Bill Clinton were also among many who expressed their support via the social networking platform.

The outpour of support led to Cindy McCain, John McCain’s wife posting a tweet Thursday to thank everyone.

She also posted a photograph on Instagram of their wedding day, with the caption reading: “Thank all of you for the wonderful thoughts. @senjohnmccain is doing well. We as a family will face the next hurdle together. One thing I do know is he is the toughest person I know. He is my hero and I love him with all my heart.”

Read: John McCain Diagnosed With Glioblastoma, Symptoms To Know About Aggressive Brain Tumor

Meanwhile, the office of Senator John McCain also released a statement: “Senator McCain appreciates the outpouring of support he has received over the last few days. He is in good spirits as he continues to recover at home with his family in Arizona. He is grateful to the doctors and staff at Mayo Clinic for their outstanding care, and is confident that any future treatment will be effective. Further consultations with Senator McCain's Mayo Clinic care team will indicate when he will return to the United States Senate.”