Low-grade, malignant, bone-forming neoplasm that arises on surface of bone
IMAGING
General Features
Imaging Recommendations
Radiographic Findings
CT Findings
MR Findings
Image-Guided Biopsy
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Selected References
Amini B et al: Osteoid tumors of bone. Semin Ultrasound CT MR. 42(2):134-49, 2021
Wang J et al: Osteosarcoma. In Fletcher CDM et al: WHO Classification of Tumours: Tumours of Soft Tissue and Bone. IARC Press, 410-3. 2020
Ruengwanichayakun P et al: Parosteal osteosarcoma: a monocentric retrospective analysis of 195 patients. Hum Pathol. 91:11-8, 2019
Hang JF et al: Parosteal osteosarcoma. Arch Pathol Lab Med. 138(5):694-9, 2014
Shimoyama T et al: Cortical bone remodeling in parosteal osteosarcoma mimicking medullary involvement: a case with the difficulty in pre-surgical staging. Tohoku J Exp Med. 233(3):165-9, 2014
Klein MJ: Parosteal osteosarcoma dedifferentiating into telangiectatic osteosarcoma: importance of lytic changes and fluid cavities at imaging. Skeletal Radiol. 39(1):69; author reply 71, 2010
Yarmish G et al: Imaging characteristics of primary osteosarcoma: nonconventional subtypes. Radiographics. 30(6):1653-72, 2010
Azura M et al: Parosteal osteosarcoma dedifferentiating into telangiectatic osteosarcoma: importance of lytic changes and fluid cavities at imaging. Skeletal Radiol. 38(7):685-90, 2009
Cardona DM et al: Dedifferentiated parosteal osteosarcoma with giant cell tumor component. Skeletal Radiol. 37(4):367-71, 2008
Dönmez FY et al: MRI findings in parosteal osteosarcoma: correlation with histopathology. Diagn Interv Radiol. 14(3):142-52, 2008
Takeuchi K et al: Dedifferentiated parosteal osteosarcoma with well-differentiated metastases. Skeletal Radiol. 35(10):778-82, 2006
Bertoni F et al: Dedifferentiated parosteal osteosarcoma: the experience of the Rizzoli Institute. Cancer. 103(11):2373-82, 2005
Jelinek JS et al: Parosteal osteosarcoma: value of MR imaging and CT in the prediction of histologic grade. Radiology. 201(3):837-42, 1996
Murphey MD et al: The many faces of osteosarcoma. Radiographics. 17(5):1205-31, 1997
Wold LE et al: Dedifferentiated parosteal osteosarcoma. J Bone Joint Surg Am. 66(1):53-9, 1984
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Top Differential Diagnoses
Diagnostic Checklist
TERMINOLOGY
Abbreviations
Osteosarcoma (OS)
Synonyms
Not recommended: juxtacortical OS
Definitions
Low-grade, malignant, bone-forming neoplasm that arises on surface of bone
IMAGING
General Features
Imaging Recommendations
Radiographic Findings
CT Findings
MR Findings
Image-Guided Biopsy
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
Gross Pathologic & Surgical Features
Microscopic Features
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Selected References
Amini B et al: Osteoid tumors of bone. Semin Ultrasound CT MR. 42(2):134-49, 2021
Wang J et al: Osteosarcoma. In Fletcher CDM et al: WHO Classification of Tumours: Tumours of Soft Tissue and Bone. IARC Press, 410-3. 2020
Ruengwanichayakun P et al: Parosteal osteosarcoma: a monocentric retrospective analysis of 195 patients. Hum Pathol. 91:11-8, 2019
Hang JF et al: Parosteal osteosarcoma. Arch Pathol Lab Med. 138(5):694-9, 2014
Shimoyama T et al: Cortical bone remodeling in parosteal osteosarcoma mimicking medullary involvement: a case with the difficulty in pre-surgical staging. Tohoku J Exp Med. 233(3):165-9, 2014
Klein MJ: Parosteal osteosarcoma dedifferentiating into telangiectatic osteosarcoma: importance of lytic changes and fluid cavities at imaging. Skeletal Radiol. 39(1):69; author reply 71, 2010
Yarmish G et al: Imaging characteristics of primary osteosarcoma: nonconventional subtypes. Radiographics. 30(6):1653-72, 2010
Azura M et al: Parosteal osteosarcoma dedifferentiating into telangiectatic osteosarcoma: importance of lytic changes and fluid cavities at imaging. Skeletal Radiol. 38(7):685-90, 2009
Cardona DM et al: Dedifferentiated parosteal osteosarcoma with giant cell tumor component. Skeletal Radiol. 37(4):367-71, 2008
Dönmez FY et al: MRI findings in parosteal osteosarcoma: correlation with histopathology. Diagn Interv Radiol. 14(3):142-52, 2008
Takeuchi K et al: Dedifferentiated parosteal osteosarcoma with well-differentiated metastases. Skeletal Radiol. 35(10):778-82, 2006
Bertoni F et al: Dedifferentiated parosteal osteosarcoma: the experience of the Rizzoli Institute. Cancer. 103(11):2373-82, 2005
Jelinek JS et al: Parosteal osteosarcoma: value of MR imaging and CT in the prediction of histologic grade. Radiology. 201(3):837-42, 1996
Murphey MD et al: The many faces of osteosarcoma. Radiographics. 17(5):1205-31, 1997
Wold LE et al: Dedifferentiated parosteal osteosarcoma. J Bone Joint Surg Am. 66(1):53-9, 1984
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