Abstract
Background. A 57-year-old woman presented with metastatic renal cell carcinoma (RCC). She was enrolled in a clinical study, in which she received two cycles of neoadjuvant sunitinib therapy followed by cytoreductive nephrectomy. Her primary tumor and rib metastasis showed a good response to neoadjuvant therapy; however, after surgery, the patient developed neurologic symptoms, including flaccid paraparesis with paresthesia and hypoesthesia. MRI of the brain and spine revealed a leptomeningeal lesion at the T12–L1 space, which was presumed to have progressed during the 3-week treatment-free perioperative period. The patient underwent radiation therapy for the intramedullary lesion 1 month later, and sunitinib therapy was subsequently reinstated. After 6 months, her extracranial lesions remained stable and the intramedullary lesion was undetectable on MRI.
Investigations. CT of the chest and abdomen, bone scan, kidney and liver function tests, measurement of serum levels of calcium, electrolytes and lactate dehydrogenase, CBC, MRI of the brain and spine.
Diagnosis. Progression of a central nervous system metastasis linked to the interruption of neoadjuvant sunitinib therapy.
Management. Neoadjuvant sunitinib therapy followed by cytoreductive nephrectomy for the primary RCC; radiation therapy for the intramedullary lesion, followed by reinstatement of sunitinib therapy owing to a good clinical response observed in the extracranial lesions.
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F. Petrelli, M. Cabiddu and M. Ghilardi researched data for the article. F. Petrelli, M. Carpo and S. Barni made substantial contributions to discussion of content. F. Petrelli wrote the article. F. Petrelli and S. Barni performed review/editing of the manuscript before submission.
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Petrelli, F., Cabiddu, M., Carpo, M. et al. Progression of intramedullary metastasis during perioperative cessation of sunitinib. Nat Rev Urol 7, 634–637 (2010). https://doi.org/10.1038/nrurol.2010.161
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DOI: https://doi.org/10.1038/nrurol.2010.161
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