Retroperitoneoscopic partial adrenalectomy for metachronous renal cell carcinoma metastasis to solitary adrenal gland.

Metastasectomy is a widely accepted treatment for renal cell carcinoma (RCC) metastasis, and is regarded as the most effective strategy for increasing the rate of cancer-specific survival. However, since bilateral synchronous or metachronous adrenal metastasis of RCC is extremely rare, a standard approach has yet to be established. Partial adrenalectomy may avoid lifelong hormonal supplementation and reduce the risk of Addisonian crisis. A 71-year-old man had a previous history of left nephrectomy and ipsilateral adrenalectomy for metachronous adrenal metastasis. Metachronous contralateral adrenal metastasis was detected 2 years after ipsilateral adrenalectomy, and he underwent retroperitoneoscopic partial adrenalectomy using a vessel sealing device. Although corticosteroid replacement therapy was not prophylactically performed, the patient did not exhibit any symptoms of hypocorticism. Nine months after the surgery, the patient remains well without steroid supplementation, and neither local recurrence nor metastasis has been detected. To the best of our knowledge, this is the first case report of laparoscopic partial adrenalectomy for RCC metastasis. The vessel sealing device was highly effective and suitable for laparoscopic partial adrenalectomy. © The Japan Society of Clinical Oncology 2019.