Washington (CNN)- Illinois Senator Dick Durbin, the Democrats' number two man in the Senate, underwent surgery Thursday to remove a small, potentially cancerous tumor from his stomach, his office announced.
Durbin's doctors said the mass was completely removed during surgery at the University of Chicago Medical Center, and there was no sign of cancer in the senator's stomach or esophagus, according to the statement. A Durbin spokesman said there was "no evidence that the tumor had spread beyond the site from which it was removed."
A full biopsy will be conducted, but his office said "preliminary biopsy results demonstrate a favorable prognosis." According to the statement, doctors said they did not expect further treatment to be needed after his recovery.
Durbin spokesman Joe Shoemaker said, "Senator Durbin went through today's surgical procedure with flying colors and is resting comfortably. He expects to be released from the hospital and resume a light schedule in the next couple days, and should be able to resume a full schedule as soon as next week."
His office said the problem was discovered during a routine check-in a few weeks ago. His office said the mass is a small gastro-intestinal stromal tumor, known as a GIST, was not present in the lining cells of the stomach. His office said it occurs in 4,000-6,000 yearly in the United States, and are about one percent of stomach tumors.