scholarly journals Surgical Anatomy of the Gastrointestinal Tract and Its Vasculature in the Laboratory Rat

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Katarína Vdoviaková ◽  
Eva Petrovová ◽  
Marcela Maloveská ◽  
Lenka Krešáková ◽  
Jana Teleky ◽  
...  
Keyword(s):  
Abdominal Cavity ◽  
Surgical Anatomy ◽  
Arterial System ◽  
Middle Colic Artery ◽  
Colic Artery ◽  
Rat Stomach ◽  
Left Colic Artery ◽  
Anatomical Dissection ◽  
Anatomical Relationship ◽  
Composite Lining

The aim of this study was to describe and illustrate the morphology of the stomach, liver, intestine, and their vasculature to support the planning of surgical therapeutic methods in abdominal cavity. On adult Wistar rats corrosion casts were prepared from the arterial system and Duracryl Dental and PUR SP were used as a casting medium and was performed macroscopic anatomical dissection of the stomach, liver, and intestine was performed. The rat stomach was a large, semilunar shaped sac with composite lining. On the stomach was very marked fundus, which formed a blind sac (saccus cecus). The rat liver was divided into six lobes, but without gall bladder. Intestine of the rat was simple, but cecum had a shape as a stomach. The following variations were observed in the origin of the cranial mesenteric artery. On the corrosion cast specimens we noticed the presence of the anastomosis between middle colic artery (a. colica media) and left colic artery (a. colica sinistra). We investigated the second anastomosis between middle colic artery and left colic artery. The results of this study reveal that the functional anatomical relationship between the rat stomach, liver and intestine is important for the development of surgical research in human and veterinary medicine.

Surgical anatomy of the accessory middle colic artery: a meta‐analysis with implications for splenic flexure cancer surgery

2021 ◽  
Author(s):  
Isaac Cheruiyot ◽  
Roberto Cirocchi ◽  
Jeremiah Munguti ◽  
Justin Davies ◽  
Justus Randolph ◽  
...  
Keyword(s):  
Splenic Flexure ◽  
Meta Analysis ◽  
Surgical Anatomy ◽  
Cancer Surgery ◽  
Middle Colic Artery ◽  
Colic Artery ◽  
Splenic Flexure Cancer

scholarly journals A three-dimensional computed tomography angiography study of the anatomy of the accessory middle colic artery and implications for colorectal cancer surgery

2020 ◽  
Vol 42 (12) ◽  
pp. 1509-1515
Author(s):  
Mitsuhiro Yano ◽  
Shinji Okazaki ◽  
Ichiro Kawamura ◽  
Shunichiro Ito ◽  
Shintaro Nozu ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Computed Tomography ◽  
Mesenteric Artery ◽  
Inferior Mesenteric Artery ◽  
Three Dimensional ◽  
Middle Colic Artery ◽  
Inferior Mesenteric Vein ◽  
Colic Artery ◽  
Left Colic Artery ◽  
Colorectal Cancer Surgery

Abstract Purpose In the present study, we focused on the accessory middle colic artery and aimed to increase the safety and curative value of colorectal cancer surgery by investigating the artery course and branching patterns. Methods We included 143 cases (mean age, 70.4 ± 11.2 years; 86 males) that had undergone surgery for neoplastic large intestinal lesions at the First Department of Surgery at Yamagata University Hospital between August 2015 and July 2018. We constructed three-dimensional (3D) computed tomography (CT) angiograms and fused them with reconstructions of the large intestines. We investigated the prevalence of the accessory middle colic artery, the variability of its origin, and the prevalence and anatomy of the arteries accompanying the inferior mesenteric vein at the same level as the origin of the inferior mesenteric artery. Results Accessory middle colic artery was observed in 48.9% (70/143) cases. This arose from the superior mesenteric artery in 47, from the inferior mesenteric artery in 21, and from the celiac artery in two cases. In 78.2% (112/143) cases, an artery accompanying the inferior mesenteric vein was present at the same level as the origin of the inferior mesenteric artery; this artery was the left colic artery in 92, the accessory middle colic artery in 11, and it divided and became the left colic artery and the accessory middle colic artery in 10 cases. Conclusion 3D CT angiograms are useful for preoperative evaluation. Accessory middle colic arteries exist and were observed in 14.9% of cases.

scholarly journals Rare left colic artery variation of the gut arterial system

2021 ◽  
Author(s):  
S. A. Memar ◽  
Alex Taylor ◽  
Shivika Ahuja ◽  
Daniel T Daly ◽  
Yun Tan
Keyword(s):  
Arterial System ◽  
Colic Artery ◽  
Left Colic Artery

scholarly journals The frequency and the arterial branches of the colosigmoind arterial trunk

2012 ◽  
Vol 18 (4) ◽  
pp. 158-163
Author(s):  
A. Cobzariu ◽  
D.M. Iliescu ◽  
C. Ionescu ◽  
P. Bordei
Keyword(s):  
Transverse Colon ◽  
Anatomical Variations ◽  
Middle Colic Artery ◽  
Colic Artery ◽  
Left Colic Artery ◽  
Lower Trunk ◽  
Arterial Trunk

Abstract Our results were obtained on a total of 101 cases and the presence of the colosigmoid trunk was encountered in 54.46% of cases, with seven types of branching variation. We were able to compare our results with those of Lippert, noticing that the classical anatomy only mentions (without details) the presence of the colosigmoid trunk, while other authors do not even mention it. The anatomical variations of the colosigmoid arterial trunk are: 1. from the colosigmoid trunk originate the left colic artery and a sigmoid trunk that gives origin to all three sigmoid arteries (14.85% of cases); 2. from the colosigmoid trunk originate the left colic and the superior sigmoid arteries (18.81% of cases); 3. from the colosigmoid trunk originate the left colic artery and a sigmoid trunk that give origin to two sigmoid arteries, superior and inferior, an aspect found in 4.95% of cases; 4. a colosigmoid trunk that give rise to the inferior sigmoid artery and to a lower trunk that give the left colic artery and the superior sigmoid artery (5.94% of cases); 5. a colosigmoid trunk that give origin to the left colic, middle colic and superior sigmoid arteries in 5.94% of cases; 6. a colosigmoid trunk that splits into a colic branch which further gives origin to the left and middle colic arteries and into a sigmoid branch that will give the superior and inferior sigmoid arteries (1.98% of cases); 7. a colosigmoid trunk that gives origin to the middle colic artery (for the transverse colon), to the left colic and superior sigmoid arteries (1.98% of cases).

scholarly journals Re-interpreting mesenteric vascular anatomy on 3D virtual and/or physical models: positioning the middle colic artery bifurcation and its relevance to surgeons operating colon cancer

2021 ◽  
Author(s):  
Bjarte T. Andersen ◽  
Bojan V. Stimec ◽  
Bjørn Edwin ◽  
Airazat M. Kazaryan ◽  
Przemyslaw J. Maziarz ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Splenic Vein ◽  
Vascular Anatomy ◽  
Middle Colic Artery ◽  
Inferior Mesenteric Vein ◽  
Anatomical Landmarks ◽  
Colic Artery ◽  
Mesenteric Vein ◽  
Wide Range ◽  
The Impact

Abstract Background The impact of the position of the middle colic artery (MCA) bifurcation and the trajectory of the accessory MCA (aMCA) on adequate lymphadenectomy when operating colon cancer have as of yet not been described and/or analysed in the literature. The aim of this study was to determine the MCA bifurcation position to anatomical landmarks and to assess the trajectory of aMCA. Methods The colonic vascular anatomy was manually reconstructed in 3D from high-resolution CT datasets using Osirix MD and 3-matic Medical and analysed. CT datasets were exported as STL files and supplemented with 3D printed models when required. Results Thirty-two datasets were analysed. The MCA bifurcation was left to the superior mesenteric vein (SMV) in 4 (12.1%), in front of SMV in 17 (53.1%) and right to SMV in 11 (34.4%) models. Median distances from the MCA origin to bifurcation were 3.21 (1.18–15.60) cm. A longer MCA bifurcated over or right to SMV, while a shorter bifurcated left to SMV (r = 0.457, p = 0.009). The main MCA direction was towards right in 19 (59.4%) models. When initial directions included left, the bifurcation occurred left to or anterior to SMV in all models. When the initial directions included right, the bifurcation occurred anterior or right to SMV in all models. The aMCA was found in 10 (31.3%) models, following the inferior mesenteric vein (IMV) in 5 near the lower pancreatic border. The IMV confluence was into SMV in 18 (56.3%), splenic vein in 11 (34.4%) and jejunal vein in 3 (9.4%) models. Conclusion Awareness of the wide range of MCA bifurcation positions reported is crucial for the quality of lymphadenectomy performed. The aMCA occurs in 31.3% models and its trajectory is in proximity to the lower pancreatic border in one half of models, indicating that it needs to be considered when operating splenic flexure cancer.

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