Utilidad de la biopsia renal laparoscópica: riñón en herradura y síndrome nefrótico

The case is presented of a 52 year-old male patient, who was referred to our center with nephrotic syndrome. He had a urine protein level of 5.2 g/g creatinine. An atypical anatomical outline of the kidney, with suspicion of fusion, was observed while performing the ultrasound scan. A computed tomography scan was requested, which showed a horseshoe kidney, suggestive of an underlying glomerular disease. Due to technical difficulties, a laparoscopic technique was used to perform the renal biopsy, with no complications for the patient. The histopathology reported membranous nephropathy. Treatment was started with prednisone at 1 mg/kg/d and mycophenolate mofetil, with remission of the nephrotic syndrome at 3 months follow-up.