Intradural extramedullary spinal metastasis of renal cell carcinoma: illustrative case report and comprehensive review of the literature

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Abstract

Study design: Literature review. Objectives: Intradural metastasis of renal cell carcinoma (RCC) has rarely been reported. We describe a case of an intradural extramedullary spinal metastasis to the cervical spine in a 68-year-old male treated for RCC 22 years prior. Additionally, we review the known reports of both intradural extramedullary and intramedullary of RCC. Methods: Case report and literature review. Results: A 68-year-old male with a history of right-sided nephrectomy for RCC preformed 22 years prior now presents with a MRI of the cervical spine showing a 1.5 cm contrast enhancing intradural extramedullary lesion at the level of C3–C4. Surgical resection of the lesion was performed. The tumor’s histological and immunohistochemical profile was consistent with metastatic RCC. There are 18 reported cases of intradural extramedullary metastases of sporadic RCC. The average age at diagnosis was 61.6 ± 14.3 years. The interval from diagnosis of primary RCC to diagnosis metastasis ranged from 0 to 264 months (mean 46.8 ± 74.0 months). Sixteen cases of intramedullary renal cell carcinoma metastasis are reported. The average age at time of diagnosis was 53.6 ± 10.2 years. The interval from diagnosis of primary RCC to diagnosis of metastasis ranged from 0 to 180 months (mean 20.9 ± 53.4 months). Conclusion: The 22-year interval from diagnosis of primary RCC to intradural metastasis is the longest latency reported in the literature. Intramedullary metastases tend to have a younger age at diagnosis and shorter interval from diagnosis of primary RCC compared to extramedullary lesions.

Original languageEnglish (US)
Pages (from-to)176-182
Number of pages7
JournalEuropean Spine Journal
Volume29
DOIs
StatePublished - Dec 2020

All Science Journal Classification (ASJC) codes

  • Surgery
  • Orthopedics and Sports Medicine

Keywords

  • Intradural extramedullary spinal metastasis
  • Intradural metastasis
  • Renal cell metastasis

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