BACKGROUND/AIM: Patients with metastatic renal cell carcinoma (RCC) with cardiac metastasis have had poor outcomes in the era of molecular targeted therapy. There are few reported outcomes for patients with cardiac metastasis of RCC treated with immune checkpoint inhibitors (ICIs). CASE REPORT: A 32-year-old female presented with metastatic RCC (unclassified type) with contralateral renal and cardiac metastases, as well as renal hilar lymph node metastases (cT4N2M1). An 18F-fluorodeoxyglucose (FDG) positron-emission tomography (PET) computed tomographic (CT) scan was useful in diagnosing cardiac metastasis. Nivolumab plus ipilimumab achieved prominent shrinkage of almost all tumors except for one cardiac tumor. FDG-PET/CT scan also revealed the marked attenuation of FDG uptake in each tumor. In addition, a needle biopsy of the remaining primary renal tumor was pathologically observed to have no viable cancer cells. CONCLUSION: This successful case suggests that ICIs might provide a better outcome even for patients with cardiac metastasis of RCC, and that FDG-PET/CT scan might be useful for therapeutic assessment, as well as diagnosis. Copyright
BACKGROUND/AIM: Patients with metastatic renal cell carcinoma (RCC) with cardiac metastasis have had poor outcomes in the era of molecular targeted therapy. There are few reported outcomes for patients with cardiac metastasis of RCC treated with immune checkpoint inhibitors (ICIs). CASE REPORT: A 32-year-old female presented with metastatic RCC (unclassified type) with contralateral renal and cardiac metastases, as well as renal hilar lymph node metastases (cT4N2M1). An 18F-fluorodeoxyglucose (FDG) positron-emission tomography (PET) computed tomographic (CT) scan was useful in diagnosing cardiac metastasis. Nivolumab plus ipilimumab achieved prominent shrinkage of almost all tumors except for one cardiac tumor. FDG-PET/CT scan also revealed the marked attenuation of FDG uptake in each tumor. In addition, a needle biopsy of the remaining primary renal tumor was pathologically observed to have no viable cancer cells. CONCLUSION: This successful case suggests that ICIs might provide a better outcome even for patients with cardiac metastasis of RCC, and that FDG-PET/CT scan might be useful for therapeutic assessment, as well as diagnosis. Copyright
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