Resumen

BACALLAO CABRERAS, Iris S et al. Anatomical variations of the lienal or splenic artery in the human being. AMC [online]. 2017, vol.21, n.1, pp.842-853. ISSN 1025-0255.

Background: the spleen is one of the best vascularized organs in the body, irrigated by the lienal artery. Objectives: to characterize from the point of view of the anatomical variations of the lienal or splenic artery in the human being. Methods: an observational and descriptive study in the Human Anatomy Department of the School of Medicine in Camaguey from November 2015 to February 2016. It was dissected the arterial splenic system in 15 anatomical preparations: five human blocks and ten fetuses between 20 to 29 weeks of development using a direct macroscopic methods and a binocular magnifying glass. These specimens were rinsed with pipe water and immersed in a formalin 5% solution; the study variables were: origin, trajectory, collateral branches and termination. Descriptive statistics, frequencies, and percentages were used. Results: the origin of the vessel from the celiac trunk with a tortuous trajectory and direction to the superior border of the pancreas in relation with the splenic vein, anterior aspect of the left kidney and suprarenal gland; giving off collateral branches: dorsal pancreatic, pancreatic arteries and left gastroepiploica with variations in number and origin in fetuses; the form of terminations in two terminal branches: superior and inferior polar arteries, or to the level of the splenic hilum dividing in various branches. Conclusions: predominance of the origin from the celiac trunk, tortuous and rectilinear trajectory in fetuses. Variant collateral branches of the gastroepiploica in a double or single form with predominance of the doubles in fetuses. Dichotomized termination in superior and inferior polar arteries.

Palabras clave : SPLENIC ARTERY [anatomy & histology]; ANATOMIC VARIATION; SPLEEN [blood supply]; FETUS; EPIDEMIOLOGY, DESCRIPTIVE.

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