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Large Retroperitoneal Extraosseous Osteosarcoma Invading into the Spine: a Case Report
Anish P Nagpal1, Somesh Chandra2, Shaifali Goel3
1Anya Gastro Surgicentre, Ahmedabad, India.
Indian Journal of Surgical Oncology
|November 23, 2016
Summary
Extraosseous osteogenic sarcoma is a rare cancer. This case highlights managing spinal invasion with a multidisciplinary team and en bloc resection for better survival.
Area of Science:
- Oncology
- Orthopedic Oncology
- Surgical Pathology
Background:
- Extraosseous osteogenic sarcoma is an exceptionally rare malignant neoplasm, typically affecting the extremities, thorax, and abdomen.
- Retroperitoneal osteosarcomas are particularly uncommon, with limited reported cases.
- These tumors share biological similarities with high-grade soft tissue sarcomas.
Observation:
- A 62-year-old male presented with backache, revealing a large retroperitoneal mass.
- The mass invaded the lumbar spine.
- Histopathological examination confirmed the tumor as an extraosseous osteosarcoma, initially suspected as fibrosarcoma.
Findings:
- Complete (R0) resection is considered the optimal treatment for these rare tumors.
- Management of spinal-involving tumors presents unique challenges due to limited published data.
- A multidisciplinary team approach is crucial for managing soft tissue sarcomas involving the spine.
Implications:
- En bloc resection is vital for improving overall and recurrence-free survival rates in patients with spinal soft tissue sarcomas.
- The rarity and unique treatment needs of each soft tissue sarcoma subtype necessitate tailored, multidisciplinary management strategies.
- Patients with soft tissue sarcomas involving the spine generally have a poor long-term prognosis, underscoring the importance of aggressive surgical intervention when feasible.
