Danny Bonaduce to undergo brain surgery following health scare.

Actor and radio host Danny Bonaduce is set to undergo brain surgery after being diagnosed with hydrocephalus, a neurological disorder caused by a buildup of liquid in the brain. Bonaduce has been battling a mystery illness since last April, which left him unable to walk or balance. The surgery is scheduled for Monday, and the hope is it can alleviate the symptoms. Bonaduce acknowledges there's always a chance the surgery won't fix everything, but he's going into the operating room with the right frame of mind.