►Meet a 87-year-old woman with a 13cm horn growing from her forehead, Sichuan, south west China.

Liang Xiuzhen suffers from a rare medical condition called cutaneous
horn –an unusual skin tumor with the appearance of a horn, or
sometimes of wood or cor*l.
The cause of cutaneous horns is still unknown, but it is believed
that exposure to radiation can trigger the condition.
A cutaneous horn is an unusual skin tumor with the appearance of a
horn, or sometimes of wood or cor*l. The woman claims that the horn
started growing from the area where she had a black mole that started
itching and eventually split open. In just two years the growth has
expanded to reach a total of 12,7 centimeters in length and 5cm in
diameter and it's still growing. The tumor now resembles an animal
horn in shape and colour. However, the skin around the horn is red raw
and occasionally blood seeps through.
Speaking about her condition, Liang Xiuzhen said: "At the moment it's
just painful. Sometimes it's so painful it will wake me up from
sleep."
It is 12,7 centimeters in length and 5cm in diameter. As the horn is
composed of keratin, the same material found in fingernails, it can
usually be removed with a sterile razor. Treatments vary, they can
include surgery, radiation therapy, and chemotherapy.