2016, Number 3
Rev Hosp Jua Mex 2016; 83 (3)
Rodríguez-Blas AI, Díaz-García JD, Salinas-Ramos CR, Barrios-Santos E, Rocha-Rodríguez MG
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ABSTRACTAnatomic variations in the provision of the renal veins are generally ignored and not referenced; very rare situations that involve commonly the left renal vein, which have their origin in failures in the normal development of periaortic subsupracardinal anastomosis, in its conformation, disposition and/or course. Embryologically the circum-aortic ring, is a venous collar that consists of a ventral arm and a dorsal arm; the ventral involution and dorsal persistence of these arms, gives rise to the retroaortic innominate vein. This anomaly is a relatively rare disease. Generally is often overlooked. However, it has been documented in previous reports that the best diagnostic methods for their detection are the renal venogram, Doppler, MRI and CT scan. Few cases present clinical symptoms, this happens at the compression of the left renal vein by the aorta developing secondary renal venous hypertension due to the difficulty of the drainage, in which there is the nutcracker phenomenon that is characterized by hematuria, dilation of the gonadal vein and varicocele. The present case show type I retroaortic variation.