Development of a 3-dimensional model of the infratemporal fossa

Abstract

The infratemporal fossa is an irregular space inferior to the temporal fossa and deep to the ramus of the mandible. It is densely packed with muscles and neuro-vasculature, in close communication with the temporal fossa and pterygopalatine fossa. While tumors originating in this region are rare and often benign, they frequently invade neighboring structures. The infratemporal fossa's deep anatomical relationships and proximity to various cranial nerves make it a challenging space for surgical resection. In the present study, a model which accurately depicts the complex anatomy of this area as a tool to augment surgical education is described. CT angiography data from a healthy 29-year-old female was segmented and refined based on a compilation of data from published anatomical studies. The resulting anatomical details were subsequently incorporated into a 3D model by a professional medical illustrator using Maxon ZBrush. Meshes were further refined in digital 3D space based on data from peer-reviewed anatomical studies. The final 3D model demonstrates the complex anatomical structures within the infratemporal fossa, including their relationship with important cranial base and neurovascular structures relevant to surgical approaches in this area.