Surgical Anatomy of the Lung is a preoperative planning and educational tool has four main components. A Lung Capacity Calculator with interactive tools to help assess patients lung capacity after surgery. An interactive Cancer Staging Calculator with in-depth descriptions and illustrations. A 3D anatomy viewer, which can show and hide various anatomical structures. It also includes the ability to interactively place tumors of various sizes in and around the lungs. Also included are some anatomical illustrations with the ability to annotate, draw, and save out images.