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Updated: Jun 12, 2026

Murine Bilateral Renal Lymphadenectomy
Published on: December 30, 2025
Bilateral calcified renal metastases from osteosarcoma.
Sameer Vyas1, Naveen Kalra, Rakesh Kapoor
1Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, India. sameer574@yahoo.co.in
Calcified renal metastases from osteosarcoma are exceptionally rare. This case highlights late recurrence with large, calcified kidney and lung lesions, emphasizing aggressive behavior and poor prognosis in such osteosarcoma cases.
Area of Science:
- Oncology
- Radiology
- Pathology
Background:
- Osteosarcoma is a primary bone malignancy.
- Renal metastases from osteosarcoma are uncommon.
- Late recurrences can manifest as metastatic lesions.
Observation:
- A young female patient with osteosarcoma of the right ulna presented with late recurrence.
- The recurrence involved large, calcified metastatic lesions in the kidneys and lungs.
- Renal osteosarcoma metastases typically display aggressive characteristics.
Findings:
- The index case demonstrates extremely rare calcified renal metastases from osteosarcoma.
- Literature review indicates aggressive behavior and poor prognosis for renal osteosarcoma metastases.
- This case contributes to the understanding of rare metastatic patterns in osteosarcoma.
Implications:
- Early detection and monitoring of potential metastatic sites are crucial.
- Understanding rare metastatic presentations aids in patient management.
- Further research into the mechanisms of calcified osteosarcoma metastases is warranted.
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