A case of pulmonary solitary metastasis of renal cell carcinoma nine years after radical nephrectomy

A 65-year-old woman was admitted to our department when a routine screening chest X-ray film demonstrated pulmonary solitary nodule. Nine years before, left nephrectomy had been performed with a diagnosis of renal cell carcinoma, and postoperative course was uneventful. Chest X-ray and CT confirmed the presence of well-circumscribed mass in the right lower lobe of lung. With a presumptive diagnosis of pulmonary metastasis of renal cell carcinoma, right lower lobectomy and resection of mediastinal lymph nodes was performed. The pathological diagnosis was metastasis of renal cell carcinoma, granular cell subtype. Pulmonary solitary metastasis of renal cell carcinoma, especially nine years after radical nephrectomy is rare case.