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Related Experiment Video

Updated: May 1, 2026

Establishment of Cancer Stem Cell Cultures from Human Conventional Osteosarcoma
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Primary renal osteosarcoma.

Antonio Lopez-Beltran1, Rodolfo Montironi, Jose L Carazo

  • 1Unit of Anatomical Pathology, Cordoba University Medical School, Faculty of Medicine, E-14004, Cordoba, Spain; em1lobea@uco.es.

American Journal of Clinical Pathology
|April 10, 2014
PubMed
Summary

Primary renal osteosarcoma, a rare kidney cancer, may be less aggressive than presumed. Early diagnosis and surgical treatment, particularly with low pT status, are associated with favorable outcomes.

Keywords:
KidneyOsteogenic sarcomaOsteosarcomaPrimary renal sarcomaSoft tissue tumor

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Area of Science:

  • Oncology
  • Pathology
  • Nephrology

Background:

  • Primary osteosarcoma of the kidney is an exceptionally rare and aggressive malignancy.
  • Understanding its clinical and pathological characteristics is crucial for diagnosis and treatment.

Observation:

  • This study details three cases of primary renal osteosarcoma in female patients aged 50, 66, and 78.
  • Histological subtypes included low-grade, chondroblastic, and osteoblastic osteosarcoma.
  • Tumor sizes ranged from 3-7 cm, with pT categories of pT1a, pT1b, and pT3a.

Findings:

  • Immunohistochemistry showed focal positivity for PAX2, CD10, and S100 in specific cases.
  • Two patients achieved disease-free survival at 25 and 68 months post-surgery.
  • One patient succumbed to metastatic disease.

Implications:

  • Early diagnosis and surgical intervention for primary renal osteosarcoma may lead to better prognoses.
  • The findings suggest that this rare kidney cancer might not always follow an aggressive clinical course.
  • Further research is warranted to elucidate optimal management strategies for primary renal osteosarcoma.