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Case report
Bilateral renal metastases from extraskeletal mesenchymal chondrosarcoma of thigh
  1. Himanshu Pruthi1,
  2. Harish Bhujade1,
  3. Reetu Kundu2 and
  4. Srinivasa GY3
  1. 1Radiodiagnosis and Imaging, Post Graduate Institute of Medical Education and Research, Chandigarh, India
  2. 2Department of Cytology and Gynecological Pathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
  3. 3Radiotherapy and Oncology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
  1. Correspondence to Dr Harish Bhujade; harish_bhujade{at}yahoo.com

Abstract

Mesenchymal chondrosarcoma (MC) is a rare cartilaginous tumour that occurs in the extraskeletal locations in about one-third of cases. It is aggressive in behaviour and may involve the lower extremities, central nervous system or spine. Mesenchymal tumours are known for distant metastasis; however, metastasis to bilateral kidneys after treatment has not been reported earlier. We present a case of a soft-tissue intramuscular MC of the thigh in a 38-year-old patient which had been surgically excised after neoadjuvant chemotherapy. The patient presented with bilateral dense calcified renal masses after 6 years, which were cytologically proven as MC metastases. In the evaluation of bilateral calcified renal masses in patients with a history of MC, metastasis should be considered.

  • oncology
  • radiology
  • cancer intervention
  • chemotherapy
  • urological cancer

https://doi.org/10.1136/bcr-2021-246375

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    Footnotes

    • Contributors Report was written by HP, HB and RK. Patient was under the care of SGY. All authors have read and approved the final manuscript.

    • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

    • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

    • Competing interests None declared.

    • Provenance and peer review Not commissioned; externally peer reviewed.