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Year : 2014  |  Volume : 48  |  Issue : 3  |  Page : 247-254

Osteosarcoma: Diagnostic dilemmas in histopathology and prognostic factors

Department of Pathology, University College of Medical Sciences, University of Delhi, Shahdra, New Delhi, India

Correspondence Address:
Neelam Wadhwa
Department of Pathology, University College of Medical Sciences, University of Delhi, Shahdra, New Delhi - 110 095
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0019-5413.132497

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Osteosarcoma (OS), the commonest malignancy of osteoarticular origin, is a very aggressive neoplasm. Divergent histologic differentiation is common in OS; hence triple diagnostic approach is essential in all cases. 20% cases are atypical owing to lack of concurrence among clinicoradiologic and pathologic features necessitating resampling. Recognition of specific anatomic and histologic variants is essential in view of better outcome. Traditional prognostic factors of OS do stratify patients for short term outcome, but often fail to predict their long term outcome. Considering the negligible improvement in the patient outcome during the last 20 years, search for novel prognostic factors is in progress like ezrin vascular endothelial growth factor, chemokine receptors, dysregulation of various micro ribonucleic acid are potentially promising. Their utility needs to be validated by long term followup studies before they are incorporated in routine clinical practice.

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