Metastasis to gallbladder and adrenal gland of renal cell carcinoma.

We studied a case of metastasis to the gallbladder and left adrenal gland of clear cell-type renal cell carcinoma (RCC) in the right kidney. A polypoid gallbladder tumor and left adrenal mass were found 2 years after surgery for clear cell-type RCC in a 50-year-old man. The gallbladder tumor and left adrenal mass showed hypervascularity on diagnostic imaging. Systemic image screening showed no other metastatic lesion. Simple cholecystectomy and left adrenalectomy were performed. A histopathological examination showed tumor cells in a gallbladder polyp. Furthermore, based on various specific and immunohistochemical studies, the patient was pathologically diagnosed to have gallbladder and right adrenal gland metastasis of clear cell-type RCC.