OBJECTIVE: We report a new case of renal metastasis of a lung carcinoma.METHODS: 59-year-old male presenting to the outpatient clinic with a clinical picture compatible with renal colic and hematuria.RESULTS: Ultrasound showed a solid-cystic tumor in the lower pole of the kidney without hydronephrosis. Abdominal-pelvic CT scan reported retroperitoneal adenopathies > 1 cm in the area of the aorta-cava and a 5 cm heterogeneous mass.CONCLUSIONS: Renal metastatic lesions of patients with lung cancer present more frequently due to the higher accuracy of radiological tests and have, as well as the primary tumors, very poor survival rates.