CAIRO, Egypt - The results of a CT scan done on King Tut's mummy indicate the boy king was not murdered, but may have suffered a badly broken leg shortly before his death at age 19 - a wound that could have become infected, Egypt's top archaeologist said today.

Zahi Hawass, secretary general of the Supreme Council of Antiquities, announced the results of the CT scan about two months after it was performed on Tut's mummy.

Hawass said the remains of Tutankhamun, who ruled about 3,300 years ago, showed no signs that he had been murdered - dispelling a mystery that has long surrounded the pharaoh's death.

"In answer to theories that Tutankhamun was murdered, the team found no evidence for a blow to the back of the head, and no other indication of foul play," according to a statement released today by Egyptian authorities.

Hawass said some members of the Egyptian-led research team, which included two Italian experts and one from Switzerland, interpreted a fracture to Tut's left thighbone as evidence that the king may have broken his leg badly just before he died.

"Although the break itself would not have been life-threatening, infection might have set in," the statement said. "However, this part of the team believes it also possible, although less likely, that this fracture was caused by the embalmers."

Some 17,000 images were taken of Tut's mummy during the 15-minute CT scan aimed at answering many of the mysteries that shrouded his life and death - including his royal lineage, his exact age at the time of his death and the reason he died.

"I believe these results will close the case of Tutankhamun, and the king will not need to be examined again," Hawass said. "We should now leave him at rest."

Tutankhamun's short life has fascinated people since his tomb was discovered in 1922 in the fabled Valley of the Kings in the southern Egyptian city of Luxor by a British archaeologist, Howard Carter. The find revealed a trove of fabulous treasures in gold and precious stones that showed the wealth and craftsmanship of the Pharaonic court

Hawass had long refused to allow DNA testing on Tut's remains and only agreed to perform a noninvasive CT scan on the mummy, which has since been returned to its tomb. The CT machine was brought from Germany and donated by Siemens and National Geographic.

The study, which was the first CT scan on a member of Egypt's ancient royalty, showed that Tut was of a slight build, well-fed and healthy and suffered no major childhood malnutrition or infectious diseases.

He is believed to have been the 12th ruler of ancient Egypt's 18th dynasty and ascended to the throne at about the age of 8 and died around 1323 B.C.