The tumor on North Carolina basketball coach Roy Williams' left kidney is noncancerous, the school announced Thursday night.

The results of a Wednesday biopsy showed that the tumor is an oncocytoma, which is often indistinguishable from kidney cancer on X-rays. It is the same kind of noncancerous tumor that the Hall of Fame coach had removed from his right kidney during a 3½-hour operation Sept. 19. Unlike cancerous tumors, oncocytomas do not spread.

Williams will not require surgery on his left kidney, Dr. Eric Wallen, professor of urology at UNC, said in a prepared statement -- meaning the coach should be on the court when the Tar Heels open preseason practice in fewer than 10 days.

"The result of the biopsy of the tumor on the left side is great news for Coach Williams and his family," Wallen said in the statement released by the school. "He is recovering very well and we will continue to follow his progress. In the meantime, he can return to his normal schedule, including the team's first practice on October 13th."

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