Abstract
The study was performed on 461 renal arteries in order to assess some morphological aspects regarding the arteries that supply the superior renal segment using as study methods: dissection, injection of contrast medium, injection of plastic followed by corrosion together with the examination of MRI and renal angiographies (simple and angio CT). The posterior arteries of the superior renal segment originate mostly from the posterior terminal branch of the renal artery as 1–3 arterial branches. In only 42 cases, we found posterior branches that do not participate in the supply of the superior renal pole. In 190 cases, the anterior arteries of the superior segment originated from the anterior division of the renal artery and in 73 cases directly from the trunk of the renal artery. 34 cases were assessed as a terminal division of the renal artery, while the origin from the posterior division of the renal artery was encountered in 18 cases. In 138 cases, the artery of the superior segment originated from a supplementary renal artery, double (118 cases) or triple (20 cases); in this situation, from the polar artery started the inferior suprarenal artery, except five cases where it originated from the aorta. Of the total of 461 samples, in 244 cases the renal approach was performed above the renal hilum, as proper superior polar arteries and in 217 cases the artery entered through the upper part of the hilum as an apical artery. The morphology of the arteries of the superior renal segment shows a significant degree of variability mostly in what concerns the anterior ones. Frequently we encountered a clear delimitation of the superior renal segment (in 61% of the cases), a situation that allows a relatively facile nephrectomy.
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Petru, B., Elena, Ş., Dan, I. et al. Morphological assessments on the arteries of the superior renal segment. Surg Radiol Anat 34, 137–144 (2012). https://doi.org/10.1007/s00276-011-0866-y
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DOI: https://doi.org/10.1007/s00276-011-0866-y