Only a few windpipe , or trachea , transplants have ever been done . Transplant given to Claudia Castillo , a 30-year-old Colombian mother of two . Woman 's stem cells used to create cartilage , tissue cells to cover new windpipe . She was born with an undescended larynx and trachea, which means she had no chance at all for survival in the womb.
Only a few windpipe , or trachea , transplants have ever been done . Transplant given to Claudia Castillo , a 30-year-old Colombian mother of two . Woman 's stem cells used to create cartilage , tissue cells to cover new windpipe . Doctors say procedure could become a new standard of treatment .