"We have no record of any child with such a complete third arm," Chen said. The boy also was born with just one kidney and may have problems that could lead to curvature of the spine, local media reports said. Jie-jie cried when either of his left arms was touched, but smiled and responded normally to other stimuli, the reports said.
Update: They chopped one off. That page also claims to have video, but it won't play for me.