Samantha Fox is set to undergo surgery after discovering a lump in her throat. The 56-year-old singer has confirmed she will have surgery later this month to remove a ten-millimetre growth between her vocal cords. Sam – who turned to medical experts after experiencing problems with her singing voice – told The Sun on Sunday newspaper: “When I saw the growth on the screen, I thought: ‘Oh God, that’s not normal’. “It looked very big. You think about throat cancer straight away. The doctor said, ‘We have to get that out as soon as possible. It might be nothing, but it might not be.'” Sam was redu…