LOS ANGELES (AP) – Former world champion figure skater Scott Hamilton will undergo high-tech radiation therapy for a non-cancerous brain tumor, his publicist said Thursday.

Hamilton, 46, will have “gamma knife” treatment later this month at The Cleveland Clinic in Ohio, according to a statement released by publicist Michael Sterling.

In the outpatient treatment, pinpoint doses of high radiation are delivered to kill the tumor while causing less damage to healthy tissue. The treatment will take only a single visit but results usually are not known for several months.

He may later need other minimally invasive procedures to manage his tumor, Dr. Gene Barnett, chairman of the clinic’s brain tumor institute, said in the statement.

Hamilton was diagnosed last month with the slow-growing tumor in the region of his pituitary gland. In 1997, he was diagnosed with testicular cancer and treated with surgery and chemotherapy.

“Scott’s spirit and confidence in Dr. Barnett, his staff and the treatment remain very high,” Sterling said. “Needless to say, Scott is no stranger to adversity and has always faced every challenge in his life with great enthusiasm and an uncommon level of optimism.”

Hamilton, who lives in Los Angeles, is a four-time U.S. national champion, four-time world champion and the 1984 Olympic gold medalist. He is now a skating show producer.