In addition, they found that a degeneration of the second and third long bones in the left foot could have been consistent with Köhler disease II, a foot bone disorder.
The researchers found the DNA of Plasmodium falciparum, the malaria parasite, in four royal mummies, including Tutankhamun's. That finding represents the oldest genetic proof of malaria in precisely dated mummies.
"We should not forget the leg fracture, which we know from the 2005 CT scans. It did not heal, so it occurred close to King Tut's death," Pusch said.
"It is very likely that the bone necrosis and the clubfoot required King Tut to use canes. Maybe he just fell and broke his leg," the researcher said.
Indeed, about 130 walking sticks found in King Tut's treasure-packed tomb would support the diagnosis.
Since King Tut had multiple disorders, but none alone would have caused death, there is the possibility that some of them might have turned into an inflammatory, immuno-suppressive, weakening syndrome, the researchers concluded.