Morphological Variations of Posterior Segmental Artery of the Single Renal Artery. Study on corrosion casts

Abstract

On a total of 150 renal corrosion casts were examined the posterior branch and the artery of renal posterior segment. For the origin of the posterior branch, there have been highlighted three morphological types, namely: Type I, bifurcation in anterior and posterior branches (92.67% of cases); Type II, trifurcation in anterior, posterior and superior or inferior branches (6.00% of cases); Type III, quadrifurcation in anterior, posterior, superior and inferior branches (1.33% of cases). Depending on the relations between this path and those with the posterior aspect of the renal pelvis, we highlighted four morphological types: Type I (62.67% of cases) with large extension of the posterior segmental artery, convex downward path and multiple subsegmentary branches; Type II (34.00% of cases) with large extension of the posterior segmental artery, that bifurcates or trifurcates in segmental branches and convex downward path; Type III (2.00% of cases) with small extension of the posterior segmental artery, with downward path in relation to the upper portion of the posterior surface of the renal pelvis upper portion; Type IV (1.33% of the cases) with small extension of the posterior segmental artery, with upward trajectory in relation to the lower portion of the renal pelvis. Knowledge of these aspects is important both to investigate morphological imaging and for performing partial resection of the renal parenchyma.

Plastic Materials and Chemical Substances Used for Kidney�s Anatomic Study

“…In a study published in 2017, Pop et all. [11] 150 kidney underwent corrosion tecnique, in order to examine the posterior segmentary renal artery and renal morphological variability. The following morphological types were identified: Type I, with bifurcation in an anterior and posterior branch (in 92.67% of cases), type II, trifurcate in anterior, posterior and upper or lower branches (in 6.00% of cases ) type III, quadrifurcation in an anterior branch, posterior, superior and inferior (in 1.33% of cases).…”