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Updated: May 29, 2026

Establishment of Cancer Stem Cell Cultures from Human Conventional Osteosarcoma
Published on: October 14, 2016
[Clinicopathologic features of primary osteosarcoma in elderly patients]
Yi Ding1, Xiao-hui Niu, Yi Ding
1Department of Pathology, Jishuitan Hospital, Beijing 100035, China. bootman@sina.com
Primary osteosarcoma in elderly patients is rare and often overlooked. Accurate diagnosis requires careful correlation of clinical, radiologic, and histologic findings to improve patient outcomes.
Area of Science:
- Oncology
- Orthopedic Surgery
- Radiology
Background:
- Primary osteosarcoma is uncommon in individuals over 60 years old.
- Elderly patients may present with atypical symptoms, delaying diagnosis.
Purpose of the Study:
- To investigate the clinical, radiologic, and pathologic characteristics of primary osteosarcoma in elderly patients.
- To highlight diagnostic challenges and differential diagnoses in this demographic.
Main Methods:
- Retrospective analysis of 12 cases of primary osteosarcoma in patients aged over 60.
- Review of clinical data, radiographic imaging, and histopathologic findings.
- Analysis of follow-up data for treatment outcomes and survival.
Main Results:
- Osteosarcoma occurred in long bones, ilium, craniofacial bones, and soft tissues.
- Radiologic findings included mixed osteosclerotic/osteolytic lesions and periosteal reactions.
- Histopathology revealed conventional osteosarcoma, with some variants; immunohistochemistry had limited diagnostic utility.
Conclusions:
- Primary osteosarcoma in the elderly is rare and frequently misdiagnosed.
- Integrated analysis of clinical, radiologic, and histologic data is crucial for accurate diagnosis.
- Early detection and appropriate management are essential for improving prognosis in elderly osteosarcoma patients.
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