In this short video, you’ll see how a 3D printed model of a kidney allowed pediatric urologist Thomas Kolon, MD, to study a kidney tumor from a new perspective. The model gave him access to views he didn’t have before, and the ability to examine the nearby arteries, veins and other structures that might otherwise make a surgery more difficult. Clinicians at Children’s Hospital of Philadelphia (CHOP) have used 3D printing technology to create patient-specific 3D models for many patients, allowing surgeons to find solutions for cases that were thought to be non-operable. This makes organ-sparing surgery possible for many more patients. The Children’s Hospital Additive Manufacturing for Pediatrics (CHAMP) Lab in CHOP’s Department of Radiology focuses on printing 3D models, opening the door to finding more innovative ways to treat patients.