Extra Hilar Branching of Renal Arteries: An Anatomical Study.
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Date
2015-10
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Abstract
Introduction: The objective of this study was to observe the patterns of different arteries that supply the
kidneys. The kidney has a segmental distribution of arteries. The kidneys are divided into five vascular segments.
The arteries that arise from the aorta above or below the main renal artery and reach the hilum are called
accessory renal arteries. They are persistent embryonic lateral splanchnic arteries. Accessory renal arteries
may arise from the celiac or superior mesenteric arteries, near the bifurcation or from the common iliac
arteries. The present study has attempted to find out accessory, and aberrant arteries to kidneys with review of
literature.
Materials and Methods: The study was done on 52 kidneys randomly selected from cadavers that were used for
the purpose of teaching in the department of Anatomy at P.E.S Medical College. The kidneys were removed from
the cadavers en-block with the arteries and veins intact. The renal artery was observed for its pattern of
branching.
Observations and Discussion: The pre-hilar branching pattern was absent only in six kidneys out of the 52
kidneys selected. The branches given before entering the hilum were either in the form of a fork pattern or a
ladder pattern in the remaining 46 kidneys. The fork pattern wherein the branches arose from a single point was
found in 42 kidneys. The ladder patterns were seen in two posterior segment arteries and two anterior segment
arteries. The anterior division often showed the fork patterns which were either duplicate or triplicate outside
the hilum more proximally, with further division into duplicate or triplicate terminal branches closer to the
hilum but significantly outside.
Description
Keywords
Polar arteries, Vascular patterns, Accessory Renal Arteries, Hilum, Segmental Arteries
Citation
Rao N Shakuntala, Kishore Krishna , Sujatha K , Rao H R Krishna. Extra Hilar Branching of Renal Arteries: An Anatomical Study. International Journal of Anatomy and Research. 2015 Oct-Dec; 3(4): 1568-1572.