Despite great improvements in the management of metastatic clear cell renal carcinoma, complete responses with antiangiogenic therapies are infrequent and complete pathological responses remain anecdotal. We report the complete pathological response of a solitary bone metastasis from a clear cell renal carcinoma after sequential treatment with sunitinib and radiotherapy. In February 2009, a female patient was diagnosed with clear cell renal carcinoma of the left kidney, bearing only one metastatic site localized in the proximal extremity of the left tibia. Radical nephrectomy was performed at first. Thereafter, sunitinib was administered at standard dose level for four weeks followed by two weeks free at each cycle. The patient underwent palliative radiotherapy between the fifth and the sixth cycle. Due to stable status, a radical surgery of the left knee was then performed and pathological analysis concluded a complete response. This case highlights potential synergy between sunitinib and radiation therapy in clear cell renal carcinoma.
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