Cutaneous metastasis of renal cell carcinoma through percutaneous fine needle aspiration biopsy: case report.

A 39-year-old man, who had undergone left nephrectomy for renal cell carcinoma of clear cell type, was noted to have a solitary nodular shadow in the right lung on chest X-ray. Percutaneous needle biopsy of the lung was performed via the right anterior chest wall and the histologic findings showed metastasis from renal carcinoma. Six month later, the patient presented with a cutaneous nodule at the site of puncture of the lung needle biopsy.