Three-dimensional printing guided precise surgery for right-sided aortic arch associated with Kommerell's diverticulum.

Right-sided aortic arch associated with Kommerell's diverticulum is a rare congenital defect of aorta with complexity. The challenging surgical treatment calls for a direct and entire visibility of aorta and its branches which can be provided by the three-dimensional (3D) printing technique. A 42-year-old man with right-sided aortic arch, Kommerell's diverticulum and an aberrant left subclavian artery underwent the surgery with the guiding assistance of 3D printed model. The satisfying outcome suggests the novel combination of 3D printing technique and surgical procedure a promising perspective on treating complex aortic defect.