Dancer forms cone-shaped lump after years of headspinning; doctors share before-after pics

A breakdancer from Denmark, who trained five times a week for 19 years, developed a cone-shaped lump on his head, two doctors have said. The benign tumour, called 'headspin hole', is thought to be caused from repeated friction between the dancer's head and the floor. The doctors had to surgically remove the tumour, which grew more than an inch thick.