Brenden Adams may be the only one in the world with this condition -- that certainly makes him unique -- but to Brenden nothing's different about him at all.
"In kindergarten I was as tall as the 4th graders," Adams said, who as the years went on just kept growing and growing.
Within a recent two-and-a-half year period he grew 15 inches (38.1 cm). At 5-years-old, he was as tall as his older brother, who was more than twice his age.
The reason why he's getting so much attention is that at nearly 7-feet-tall (2.1 meter), Adams is only 12.
In the past couple years simple tasks have gotten a lot harder. "Pretty much every place I go, I have to duck," said Adams.
He finally stopped growing this year, but he's got other medical conditions, like extremely large joints.
But doctors can't explain it so they can't treat him, and they can't reassure his family that Adams will live a long life.
Tags: Brenden Adams | Height | Grow