Landmark Transplant Turns 3D Bioprinting on Its Ear

More than a quarter-century after scientists first grew a humanlike ear on the back of a mouse,surgeons in San Antonio have successfully used a 3D printer to reconstruct an outer ear made of living cells for a young woman with a congenital ear deformity-no creepy-looking mice required. Researchers hailed the pioneering transplant as a major advance for tissue engineering and regenerative medicine.