Spontaneous Regression of Histologically Proved Pulmonary Metastases from Renal Cell Carcinoma: A Case with 5-Year Followup

Abstract
Spontaneous regression of biopsy proved metastatic renal cell carcinoma is rare. We describe a 39-year-old man who had histologically proved metastatic disease to the lungs after nephrectomy. The lesions had spontaneously regressed 3 months later. The patient remained without evidence of recurrence 5 years after diagnosis.