Replaced right hepatic artery originated from splenic artery, in association with gastrosplenic trunk: a case report

Abstract

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Morphological characteristics of the left gastric, common hepatic and splenic arteries. A descriptive study in human cadaveric specimens

“…The frequency of the emergence at the same level of the three branches of the CT (26.9%) is higher than in a previous report 22 , 23 , while the range of expression of this morphological feature is 32.1-89.5% 20 , 24 . The incidence of the independent origin of the LGA and CHA from the AA 4 , 6 is reported at 1.4-2.3 and 0.4-0.6, respectivelly 11 , 21 , 24 , whereas, in this report, the incidence of an AA origin is mildly higher (3.8% for each branch). On the other hand, the origin of the CHA is highly variable, according to multiple studies.…”

“…Usually, the celiac trunk (CT), the main branch of the abdominal aorta (AA) branches out into the left gastric artery (LGA), splenic artery (SA), and common hepatic artery (CHA), with several variants described in the literature, especially, the true trifurcation (“tripus Halleri”) in 22-30% of the cases 1 - 3 , or bifurcated presentation, called hepatogastric, gastrosplenic, hepatosplenic 4 , 5 . The LGA branches out from the AA 6 in 2.5-13.1% 3 , 7 , is the first branch of the CT 8 in a 68% of the cases, with a usual diameter of 3.8-5mm 1 , 2 , 9 .…”

Características morfológicas das artérias gástricas esquerda, hepática comum e esplênica. Um estudo descritivo em espécimes cadavéricos humanos

“…A incidência da origem independente da AGE e da AHC a partir da AA 4,6 é relatado em 1,4-2,3% e 0,4-0,6%, respectivamente 11,21,24 , ao passo que, neste relato, a incidência de origem da AA é discretamente maior (3,8% para cada ramo). Por outro lado, a origem da AHC é altamente variável, de acordo com múltiplos estudos.…”

“…N ormalmente, o tronco celíaco (TC), principal ramo da aorta abdominal (AA), ramifica-se na artéria gástrica esquerda (AGE), artéria esplênica (AE) e artéria hepática comum (AHC), com diversas variantes descritas na literatura, especialmente a verdadeira trifurcação ("tripus Halleri") em 22-30% dos casos 1-3 e a apresentação bifurcada, denominada hepatogástrica, gastroesplênica, hepatoesplênica 4,5 . A AGE se ramifica a partir do AA 6 em 2,5-13,1% 3,7 , é o primeiro ramo do TC8 em 68% dos casos, com diâmetro usual de 3,8-5mm 1,2,9 .…”