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Revista Cubana de Medicina Militar

Print version ISSN 0138-6557On-line version ISSN 1561-3046


RODRIGUEZ COLLAR, Tomás Lázaro  and  LLUIS RAMOS, Guido Emilio. Crossed-fused renal ectopia. Rev Cub Med Mil [online]. 2020, vol.49, n.1, e472.  Epub Mar 01, 2020. ISSN 0138-6557.


Crossed-fused renal ectopia is a rare congenital anomaly, which occurs during the physiological migration of these organs in the embryonic stage.


To describe clinical and imaginological details of a new case of crossed-fused renal ectopia.

Case report:

48-year-old male patient, with a history of prostatic hyperplasia, with terazosin treatment. He had complete retention of urine for which urethral catheter was placed. Abdominal ultrasound reported that the left kidney was of normal structure, size and echo, but the right one was not in the normal location and was suspected of being located in the mesogastrium region. The bladder was normal and the prostate had a volume of 87 cm3. Contrast abdominal computed tomography confirmed that it was a fused right renal ectopia, in the lower pole of the orthotopic kidney, in the form of "J". An attempt was made to remove the urethral catheter twice and it became blocked again, so the definitive surgical therapy was decided. In the preoperative check-up, all blood test studies were normal. The patient underwent retropubic adenomectomy. It evolved satisfactorily. Histopathological study of the surgical specimen reported prostatic hyperplasia.


Crossed-fused renal ectopia is uncommon. The diagnosis of certainty is obtained by contrasted abdominal computed tomography.

Keywords : kidney; congenital abnormalities; fused kidney.

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