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Low grade central osteosarcoma--a diagnostic dilemma.
Ashok Kumar1, Manish Kumar Varshney, Shah Alam Khan
1Department of Orthopedics and Pathology, All India Institute of Medical Sciences, Ansari Nagar, Flat No. 3221 Ground Floor, Sector-A, PKT-B & C, Vasant Kunj, New Delhi 110070, India. ashok_k73@rediffmail.com
Joint Bone Spine
|May 7, 2008
Summary
Low grade central osteosarcoma, a rare bone tumor, can be misdiagnosed as fibrous dysplasia. Misdiagnosis can lead to inadequate treatment and aggressive recurrence, highlighting the need for accurate diagnosis.
Area of Science:
- Orthopedics
- Oncology
- Pathology
Background:
- Low grade central osteosarcoma is a rare primary bone tumor.
- It shares features with the more common fibrous dysplasia, leading to potential misdiagnosis.
- Accurate differentiation is crucial for appropriate treatment and prognosis.
Observation:
- A case of low grade central osteosarcoma of the right tibia is presented.
- The initial presentation mimicked fibrous dysplasia and was treated with curettage and bone grafting.
- Recurrence occurred three years later with increased local involvement but no metastasis.
Findings:
- The initial misdiagnosis of fibrous dysplasia led to inadequate treatment.
- Recurrent osteosarcoma demonstrated significant local progression.
- Surgical intervention with above-knee amputation resulted in a disease-free state.
Implications:
- Emphasizes the importance of distinguishing low grade central osteosarcoma from fibrous dysplasia.
- Highlights the potential for aggressive recurrence following misdiagnosis and inadequate treatment.
- Demonstrates the effectiveness of radical surgical treatment in managing recurrent disease.
