This still image, taken from a video released by the Mexican Social Security Institute on Tuesday, shows the tumour growing from the side of the child's body.

Mexico City - Mexican doctors say they have successfully removed a 15kg benign tumour from the body of a two-year-old child.

Dr Gustavo Hernandez says the tumour was heavier than the child, who at the time of the June 14 surgery weighed 12kg.

Hernandez said on Tuesday that the child, from the northern state of Durango, was born with a lump that eventually covered the right side of his body from his armpit to his hip.

Hernandez says it took doctors at the La Raza Medical Centre in Mexico City 10 hours to remove the tumour. Hernandez is the director of paediatrics at La Raza hospital.

He says the boy is recovering and doing well.

The doctor also said the operation marked the first time Mexican doctors have removed a tumour bigger than the person carrying it. - Sapa-AP