We have assembled a preliminary environment for simulating tasks that are performed in colonoscopy to provide a professional learning experience. Different commercial endoscopy simulators exist and provide realistic interfaces, but none of these products are able to simulate realistic soft tissue deformations using patient specific preoperative CT or MRI colon datasets. Colon models are represented as deformable objects within physically-based modeling simulation system. The simplified mass-spring system models an object as a collection of point masses connected by linear springs in a mesh structure. We can import patient specific high resolution meshes from MRI and CT abdominal examinations into a system that models objects with different physical properties for interaction with both non-force-feedback and haptic devices. The score tip of the colonoscope with instrument channel, irrigation, lens and light is modeled and the working channel allows interactions with different instrumen...