A very rare variant in the colon supply - Arteria mesenterica media

Kachlík, David; Laco, Josef; Turyna, Radovan; Báča, Václav

doi:10.5507/bp.2009.014

Cited by 5 publications

(2 citation statements)

References 20 publications

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“…The branches of these arteries develop afterwards, as the viscera descend into the abdomen. The MMA, according to the literature, seems to be an example of additional unpaired artery supplying the midgut and the hindgut (4,6). In our case, the MMA replaces the MCA and gives also rise to the "absent" Inferior Pancreaticoduodenal Artery, which normally supplies the head of the pancreas and usually emerges from the SMA below the MCA.…”

Section: Discussionmentioning

confidence: 51%

“…The Middle Mesenteric Artery (MMA) is defined as a vessel which originates directly from the abdominal aorta. In these cases, the vessel arises between the Superior (SMA) and the Inferior Mesenteric Arteries (IMA) and mainly supplies the transverse, and sometimes the descending or ascending colon (3)(4)(5)(6). The MMA is considered to be a very rare variation, with an incidence lower than 0.1% (5).…”

Section: Introductionmentioning

confidence: 99%

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A Rare Branching Pattern of a Middle Mesenteric Artery Supplying the Head of the Pancreas and the Transverse Colon

Venieratos

Tsoucalas

Panagouli

2018

ama

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Objective. The appearance of a middle mesenteric artery is a rare branching variation, with an incidence lower than 0.1%. Our case reports such an anatomical artery pattern which was discovered in a male Caucasian cadaver during routine educational dissection. This alternation is seldom encountered and may trouble diagnostic and surgical interventions.Case Report. The case of a Middle Mesenteric Artery is described, as a vessel originating from the Abdominal Aorta 3.3 cm below the origin of the Superior Mesenteric and 3.8 cm above the origin of the Inferior Mesenteric Artery. The middle mesenteric artery, directed upwards, gives two branches for supplying blood to the head of the pancreas. We first mention the thinner branch, corresponding to the posterior one of the inferior pancreaticoduodenal artery, and second the thicker branch corresponding to the anterior branch of the Inferior Pancreaticoduodenal Artery. The main artery continues its course between the two sheets of the mesocolon to supply the transverse colon, thus substituting the normal colic artery.Conclusion. The occurrence of a Middle Mesenteric Artery constitutes a very rare anatomic variation. We present, to our knowledge, the first case described where the Middle Mesenteric Artery provides blood to the pancreas.

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Section: Discussionmentioning

confidence: 51%

Section: Introductionmentioning

confidence: 99%

A Rare Branching Pattern of a Middle Mesenteric Artery Supplying the Head of the Pancreas and the Transverse Colon

Venieratos

Tsoucalas

Panagouli

2018

ama

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Anterior retroperitoneal rami: Until now unnamed direct branches of the abdominal aorta

et al. 2014

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The aim of the study was to gain a thorough knowledge of the topography and distribution of until now officially unnamed minute direct branches from abdominal aorta, stemming from its ventral and lateral aspects, supplying surrounding tissue, and to comprise it to the existing studies. The study was performed in fixed cadaverous material collected from India ink injections of abdominal aorta samples with large surrounding retroperitoneal tissue. The 25 samples were dissected under magnifying binocular glass, followed by graphic reconstruction; statistical analysis, and the study was preceded with detailed review of branches from abdominal aorta. For systematization of the segmental anatomy of the abdominal aorta and infrarenal segment of inferior vena cava, we defined three levels in this area. The retroperitoneal branches were most frequently situated simultaneously within all three predefined levels according to renal and inferior mesenteric arteries origin. There were 18% of retroperitoneal branches within Level 1, 39% within Level 2 and 43% within Level 3. They were branches not only from the abdominal aorta, but also from the testicular/ovarian artery, common iliac artery and in one case from the right accessory renal artery. Paired arrangement was recorded mainly cranially to the origin of inferior mesenteric artery, unpaired branches were more frequently found caudally. In conclusion, due to the terminological disunity of these arteries in the clinical literature and total absence in the anatomical literature, we propose to denominate them as anterior retroperitoneal branches of abdominal aorta (rami retroperitoneales anteriores aortae abdominalis).

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Variant origins of the middle colic artery from the coeliac trunk and its branches

Belbl,

Kachlik,

Girsa

et al. 2023

Anat Sci Int

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A very rare variant in the colon supply - Arteria mesenterica media

Cited by 5 publications

References 20 publications

A Rare Branching Pattern of a Middle Mesenteric Artery Supplying the Head of the Pancreas and the Transverse Colon

A Rare Branching Pattern of a Middle Mesenteric Artery Supplying the Head of the Pancreas and the Transverse Colon

Anterior retroperitoneal rami: Until now unnamed direct branches of the abdominal aorta

Variant origins of the middle colic artery from the coeliac trunk and its branches

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