A ten-year-old Bangladeshi girl with bark-like warts on her face could be the first female to have contracted what is known as "tree man syndrome", doctors have said.

Sahana Khatun's father became concerned when a growth on his daughter's face began to spread.

He took her to Dhaka, where doctors have concluded she could have the same, incredibly rare, condition that has afflicted just four other people - all men - around the world.

The disease is called epidermodysplasia verruciformis or Lewandowsky–Lutz dysplasia - but more commonly referred to as "tree man syndrome" due to the bark-like appeareance of the growths.