case_images: PMC5889299_01
case_images: Photograph taken 6 months after the operation. Straight hair is visible on the right side of the head. The right side of the head is affected by Horner's syndrome. The original hair texture of the infant is retained on the left side of the head.
case_images: 10-1055-s-0038-1639479-i170361cr-3.jpg
case_images: PMC5889299_01_10-1055-s-0038-1639479-i170361cr-3.jpg
case_images: FI170361cr-3
case_images: Four months after surgery, the hair on the left side of her head was still curly, while the hair on the right side had turned straight ( Figs. 3 , 4A , B ). 
case_images: Photograph taken at 16 months. (
  A
  ) Straight hair on the right side of her head which is affected by Horner's syndrome. (
  B
  ) The original hair texture of the infant is retained on the left side of the head which is not affected by Horner's syndrome.
case_images: 10-1055-s-0038-1639479-i170361cr-4.jpg
case_images: PMC5889299_01_10-1055-s-0038-1639479-i170361cr-4.jpg
case_images: FI170361cr-4
case_images: Four months after surgery, the hair on the left side of her head was still curly, while the hair on the right side had turned straight ( Figs. 3 , 4A , B ). 