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Updated: Jun 15, 2026

Modeling Primary Bone Tumors and Bone Metastasis with Solid Tumor Graft Implantation into Bone
Published on: September 9, 2020
Computed tomography findings in radiation-induced osteosarcoma of the jaws
Ziyang Shao1, Yu He, Lizhen Wang
1Department of Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China.
Objective:
The objective of this study was to report the CT appearances of radiation-induced jaw osteosarcomas (RIJOS) following therapeutic irradiation.
Study Design:
The CT studies of 7 subjects with RIJOS were reviewed retrospectively.
Results:
RIJOS developed at 3 to 14 years following radiotherapy. Four patients had tumors in the maxilla and 3 in the mandible. Five tumors were osteoblastic, with 1 osteolytic and 1 mixed lesions. Osteoid tumor matrix mineralization was identified in 6 subjects. Periosteal reaction was demonstrated in 6 cases. All subjects showed a soft tissue extension component beyond the area of bone destruction.
Conclusion:
CT is a useful tool to identify RIJOS and plays an important role in preoperative assessment of the extent of the tumor.
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