paolo macchiarini.dbreaking synthetic organ transplants, and he developed a technique to rplace a patient's trachea with a plastic tube seeded with the patient's own stem cells. >> that's right, good girl. >> we were following a story of a toddler from korea who was being brought to the u.s. she was born with no trachea at all, so she had been hospitalized from the day she was born. she was going to be the youngest person ever to get one of these artificial tracheas. it was an exciting story. i mean, the hope with the story was that this little girl was going to be kind of a miracle child. just reading about him, you really got the sense from him that he wanted to help people, that he wanted to help humanity. >> here, we do everything. >> a breakthrough -- a report that a doctor has found a way to grow a new windpipe. >> hailing a surgical first that could offer new hope. >> all these studies are ongoing. this could be the future. >> he had this nickname that he was a rock star surgeon and the super sur