Synchronous and metachronous contralateral adrenal metastases from primary renal cell carcinoma

Two rare cases of contralateral adrenal metastases are reported. One with a synchronous presentation where the renal tumor was removed together with a solitary large contralateral adrenal metastasis. The second patient underwent adrenalectomy for a metastatic lesion diagnosed 4 years after nephrectomy performed for renal cell carcinoma of the contralateral kidney. Five years following the adrenalectomy the patient underwent leg amputation because of a solitary bone metastasis.