Mandibular Chondrosarcoma Reconstructed Using Custom Implant and Radial Forearm Free Flap.

We describe the case of a 40-year-old male presenting with an enlarging left facial and temporal chondrosarcoma centered on the left mandibular coronoid process resulting in pathologic fractures of the zygomatic arch and focal erosion of the temporal bone. The patient underwent surgical resection via a combined hemicoronal and parotidectomy approach. The zygomatic arch was reconstructed with a patient-specific polyetheretherketone implant, and temporal contour was restored with a buried de-epithelialized radial forearm free flap. Final pathology demonstrated conventional central chondrosarcoma. This case demonstrates an unusual presentation of a rare head and neck chondrosarcoma that originated from the mandibular coronoid process with the unique use of a custom polyetheretherketone implant and vascularized fat and fascial reconstruction.