Man's head is expanded with a balloon the size of a grapefruit ..
• dailymail.co.ukChris Stoyanov endured 17 years of operations to try and remove a tumour Surgeons were forced to cut away 23cm of scalp to remove the lump
Chris Stoyanov endured 17 years of operations to try and remove a tumour Surgeons were forced to cut away 23cm of scalp to remove the lump