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KEY FACTS
Terminology
Imaging
Clinical Issues
TERMINOLOGY
Abbreviations
Osteosarcoma (OS)
Synonyms
Paget sarcoma
Radiation sarcoma, post-radiation sarcoma
Dedifferentiated chondrosarcoma
Dedifferentiated sarcoma
Definitions
Bone-forming sarcoma arising in bone affected by underlying condition making it susceptible to sarcomatous degeneration
Paget disease
Previously radiated bone
Dedifferentiated chondrosarcoma
Other rare disorders, including dedifferentiation of surface osteosarcomas (OS) to high-grade OS
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Selected References
Forest M et al: Secondary osteosarcomas. In Fletcher CDM et al: World Health Organization Classification of Tumours: Tumours of Soft Tissue and Bone. Lyon: IARC Press. 277-8, 2002
Yagishita S et al: Secondary osteosarcoma developing 10 years after chemoradiotherapy for non-small-cell lung cancer. Jpn J Clin Oncol. 44(2):191-4, 2014
Murphey MD et al: The many faces of osteosarcoma. Radiographics. 17(5):1205-31, 1997
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Clinical Issues
TERMINOLOGY
Abbreviations
Osteosarcoma (OS)
Synonyms
Paget sarcoma
Radiation sarcoma, post-radiation sarcoma
Dedifferentiated chondrosarcoma
Dedifferentiated sarcoma
Definitions
Bone-forming sarcoma arising in bone affected by underlying condition making it susceptible to sarcomatous degeneration
Paget disease
Previously radiated bone
Dedifferentiated chondrosarcoma
Other rare disorders, including dedifferentiation of surface osteosarcomas (OS) to high-grade OS
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Selected References
Forest M et al: Secondary osteosarcomas. In Fletcher CDM et al: World Health Organization Classification of Tumours: Tumours of Soft Tissue and Bone. Lyon: IARC Press. 277-8, 2002
Yagishita S et al: Secondary osteosarcoma developing 10 years after chemoradiotherapy for non-small-cell lung cancer. Jpn J Clin Oncol. 44(2):191-4, 2014
Murphey MD et al: The many faces of osteosarcoma. Radiographics. 17(5):1205-31, 1997
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