More surgery planned for Friday to remove Ballesteros' brain tumor - Wire Services MADRID, Spain -- Seve Ballesteros' brain tumor is cancerous and he will undergo another operation. La Paz Hospital said Thursday that the surgery is "of great complexity." The procedure Friday is designed to relieve pressure on his brain caused by swelling and bleeding that have recently developed. The remaining parts of the malignant tumor, located in a very deep part of the brain, will be removed. The 51-year-old Ballesteros was in stable, but serious, condition before the operation, the hospital said. Based on an analysis of cells...