Morphometry and Anatomical Variants of the Celiac Trunk in Mexican Population/ Morfometria y Variantes Anatomicas del Tronco Celiaco en Poblacion Mexicana

Anatomical variants in the celiac trunk (CT) are important in surgical and interventional fields. Studies worldwide have demonstrated length and structure variations in the celiac trunk. These studies have predominantly been carried out in Asian and European population. Therefore, we considered it necessary to realize a study to describe this structure and serve as a reference in the Mexican population. A sample of 50 human cadaveric specimens of Mexican origin was analyzed. The average length of the celiac trunk from its origin to its first branch was 12.44 mm, to the second branch was 17.07 mm, and to the third branch was 19.15 mm. In the studied sample, variants were found in 20 % of the specimens, 14 % of these presented morphometric variations in terms of length, and 6 % in terms of structure. In reference to the morphometric variants, the presence of one 3 mm length CT was noteworthy. Morphological variants were found in two specimens presenting a gastro-splenic trunk with a hepatomesenteric trunk, and a third specimen with hepatogastric bifurcated trunk, with the splenic artery originating from the common hepatic artery was observed. No reports were found in the literature concerning the latter. KEY WORDS: Anatomical variations; Celiac trunk; Mexican population; Morphometry; Morphology. RESUMEN: Las variantes anatomicas del tronco celiaco (TC) son relevantes en el ambito quirurgico e intervencionista. Existen diferentes estudios a nivel mundial que han demostrado las variaciones que puede presentar el TC tanto en longitud como en estructura; dichos estudios han sido realizados predominantemente en poblacion asiatica y europea. Por lo anterior, realizamos un estudio que caracterizo esta estructura y que sea referente para la poblacion mexicana. Se analizo una muestra de 50 especimenes cadavericos humanos embalsamados de origen mexicano. El promedio de longitud del TC a su primera rama fue de 12,44 mm; de su origen a la segunda rama fue de 17,07 mm; y hasta la tercera fue de 19,15 mm. En la muestra de estudio se encontraron variantes en el 20 % de los especimenes, de estos el 14 % presentaron variantes morfometricas en cuanto a longitud y 6 % en estructura. Respecto a las variantes morfometricas, destaco la presencia de un TC de 3 mm de longitud. En cuanto a las variantes morfologicas dos individuos presentaron un tronco gastro-esplenico con tronco hepato-mesenterico; y el tercero un tronco bifurcado hepato-gastrico con la arteria esplenica naciendo d