The pictures are striking. Streams of blood seem to flow from a 14-year-old girl’s eyes and spring spontaneously from her scalp and feet.

Some say it’s a miracle. Some say it’s a mystery. Still others call it witchcraft or sorcery. And a doctor who examined her said it more likely is a manifestation of a mental illness called Munchausen syndrome.

Whatever it is, Dr. George Buchanan, who traveled to India to examine the girl called Twinkle for a special on National Geographic Channel, says it’s unlike anything he’s seen before in a long career as a pediatrician.