Amazing 'pixie dust' made from pigs bladder regrew a severed finger in 4 weeks

Scientists are claiming an amazing breakthrough - regrowing a man's severed finger with the aid of an experimental powder.

Four weeks after Lee Spievack sliced almost half an inch off the top of one of his fingers, he said it had grown back to its original length.

Four months later it looked like any other finger, complete with "great feeling", a fingernail and fingerprint.

The secret to the astonishing regrowth is said to be the powder described by Mr Spievack, a Cincinnati model shop salesman, as "pixie dust".