An Inferior Mesenteric Artery Arising From The Left Common Iliac Artery

Although anatomical variations in abdominal vascular branching are a common phenomenon, alternations inIMA are rather rare. We report a variation found during a dissection of an embalmed male cadaver of CaucasianHellenic origin, where we observed an IMA having as a point of origin the left common iliac artery, 0.4 cm afterthe AA bifurcation in the level between L3 and L4 vertebra. Ignorance of this variant may cause serious implicationsduring vascular and abdominal surgery

Bilateral Origin of the Testicular Arteries from the Lower Polar Accessory Renal Arteries / Origen Bilateral de las Arterias Testiculares desde las Arterias Renales Polares Inferiores Accesorias

The gonadal arteries (testicular or ovarian arteries) emerge normally from the lateral aspect of the abdominal aorta, a little inferior to the renal arteries. Several other sites of origin of these arteries have been recorded with the renal and accessory renal arteries being the most common. In the present case report, the testicular arteries originated from the lower polar accessory renal arteries in both sides. The testicular veins followed had the usual origin and course, while an accessory renal vein was observed only in the right side. These anomalies were combined with an abnormal left ureter exiting from the lower pole of the kidney. Only one male cadaver among 77 adult human cadavers of Caucasian origin presented this set of variations (frequency: 1.3%). Variations of renal and gonadal vessels are important, as their presence could result in vascular injury of any accessory or aberrant vessel if the surgeon does not identify them.

Las arterias gonadales (testiculares o ováricas) se originan normalmente de la parte lateral de la parte abdominal de la aorta, distal a las arterias renales. Se han registrado otros lugares de origen de estas arterias, entre ellos, los más comunes en las arterias renales y renales accesorias. En el presente caso, las arterias testiculares se originaron bilateralmente desde las arterias renales polares inferiores accesorias. Las venas testiculares siguieron el origen y curso habitual, mientras que una vena renal accesoria sólo se observó en el lado derecho. Estas anomalías se combinaron con un uréter izquierdo anormal que salía desde el polo inferior del riñón. Sólo un cadáver de sexo masculino, de origen caucásico, entre los 77 cadáveres humanos adultos, presentaba este conjunto de variaciones (frecuencia: 1,3%). Las variaciones de los vasos renales y gonadales son importantes. Su presencia, si el cirujano no los identifica, puede resultar en lesiones vasculares de algún vaso accesorio o aberrante.