Computed tomography findings in radiation-induced osteosarcoma of the jaws
- PMID: 20219593
- DOI: 10.1016/j.tripleo.2009.10.049
Computed tomography findings in radiation-induced osteosarcoma of the jaws
Abstract
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.
Copyright 2010 Mosby, Inc. All rights reserved.
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