A rare branching pattern of hindgut: absence of inferior mesenteric artery

2016 ◽  
Vol 39 (7) ◽  
pp. 803-806
Author(s):  
Deog-Im Kim ◽  
Seung-Ho Han
2016 ◽  
Vol 4 (1) ◽  
pp. 2062-2068 ◽  
Author(s):  
Raja Reddy Gangam ◽  
◽  
S. Sindhura Sadanandam Sharon ◽  

ISRN Anatomy ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Simeon Sinkeet ◽  
Philip Mwachaka ◽  
Johnstone Muthoka ◽  
Hassan Saidi

Background. Branching pattern of inferior mesenteric artery (IMA) and pattern of vascular supply to the left colon and rectosigmoid areas, though important during colorectal surgery, display interethnic variations. Further, these regions have notable vascular “weak points” reported to be highly susceptible to ischemic colitis. This study aimed at evaluating the branching pattern of IMA in a black African population. Materials and Methods. Fifty-seven formalin-embalmed cadavers (28 Male, 27 Female) were studied. The length, branching pattern, and diameter of IMA at its origin were recorded. Results. IMA mean length and diameter at origin were  mm and  mm, respectively. IMA most frequently branched into left colic artery and a common sigmoid trunk in 23 cases while the classical branching pattern was observed in only 7 cases. Colic marginal artery was absent at the splenic flexure and sigmoid colon in 7 and 5 cases, respectively. Arc of Riolan was observed in 9 cases. Conclusion. Branching pattern of IMA shows variations from the previously reported cases which might help account for some of the untoward outcomes observed following colon surgery. An angiographic study to further delineate functionality of the arterial anastomoses in this region is recommended.


2016 ◽  
Vol 33 (04) ◽  
pp. 193-196 ◽  
Author(s):  
R. Singh

Abstract Introduction: Inferior mesenteric artery arises from abdominal aorta just below the third part of duodenum at the level of L3-L4 vertebra. It supplies left colon and rectosigmoid colon through its branches namely- left colic artery, two-three sigmoid arteries and superior rectal artery. The branching pattern of inferior mesenteric artery is of immense use in colon surgery. Material and Methods: The study was carried out in the department of anatomy by dissecting seven embalmed cadavers. The inferior mesenteric artery and its branches were identified; its vertebral level was analysed. The length and diameter of inferior mesenteric artery were measured by vernier callipers. Results: In first case, bifurcation of inferior mesentric artery into common trunk and main artery then trifitrcation of main artery and bifurcation of common trunk belong to anomalous configuration. In second case, this artery gave a tetrafitrcated common trunk and main artery which continued as superior rectal artery. In third case, the same artery trifurcated into left colic, superior rectal artery and bifurcated common trunk. In fourth case, the artery bifurcated into common trunk further dividing into left colic and sigmoid arteries and main artery into superior rectal and sigmoid arteries. In fifth case, this artery trifitrcated into three branches namely, sigmoid, rectosigmoid, and superior rectal arteries. Left colic artery arose from superior mesenteric artery. Conclusion: The knowledge of branching pattern of inferior mesenteric artery will be of paramount importance to colon surgeons during colectomy, to radiologists in avoiding misinterpretation of radiographs and anatomists for new variants.


2020 ◽  
Vol 4 ◽  
pp. 9
Author(s):  
Salman Mirza ◽  
Shahnawaz Ansari

We present a case of a 72-year-old male with an abdominal aortic aneurysm status post-endovascular aneurysm repair (EVAR). Follow-up imaging demonstrated an enlarging type II endoleak and attempts at transarterial coil embolization of the inferior mesenteric artery were unsuccessful. The patient underwent image-guided percutaneous translumbar type II endoleak repair using XperGuide (Philips, Andover, MA USA).


2020 ◽  
Vol 40 (5) ◽  
pp. 2969-2974
Author(s):  
ENRICO FIORI ◽  
DANIELE CROCETTI ◽  
ANTONIETTA LAMAZZA ◽  
FRANCESCA DE FELICE ◽  
GIORGIA BURRELLI SCOTTI ◽  
...  

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Anne-Jet S. Jansen ◽  
Paul M. van Schaik ◽  
Jasper M. Martens ◽  
Michel M. P. J. Reijnen

Abstract Background This case report demonstrates the value of IMPEDE-FX plugs in an embolization procedure of a false lumen of an infrarenal post-dissection aneurysm. Case presentation A 69-year-old patient was treated with mitral valve replacement, complicated by a Stanford type-A dissection. After 9 years he presented with an enlarging infrarenal post-dissection aneurysm. The false lumen was embolized using multiple IMPEDE-FX plugs as part of the treatment in addition to embolization of the inferior mesenteric artery and overstenting of the re-entry in the right iliac artery. At 15 months the CTA showed a fully thrombosed false lumen and remodeling of the true lumen. Conclusions The false lumen of an infrarenal post-dissection aneurysm can successfully be embolized using IMPEDE-FX embolization plugs as part of the treatment strategy. Prospective trials on patients with non-thrombosed false lumina are indicated.


2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Chunhui Jiang ◽  
Ye Liu ◽  
Chunjie Xu ◽  
Yanying Shen ◽  
Qing Xu ◽  
...  

Abstract Objective This study aimed to explore the pathological characteristics of lymph nodes around inferior mesenteric artery in rectal cancer and its risk factors and its impact on tumor staging. Methods 485 rectal cancer patients underwent proctectomy surgery were collected in this study. Clinical features of patients, including gender, age, BMI, tumor size, pathological type, differentiation, nerve invasion, lymph nodes, tumor marker, and pathological examinations, were analyzed. Results A total of 485 cases were included in this study. There were 29 cases with IMA-LN metastasis; the metastasis rate was 5.98% (29/485). Positive IMA-LNs were associated with distance from anal verge, CEA, pathological type, differentiation, nerve invasion, T stage, and N stage. Multivariate analysis showed that distance from anal verge, CEA level, differentiation, and T stage were independent risk factors for positive IMA-LNs. Conclusion Distance from anal verge, CEA level, differentiation, and T stage were independent risk factors for positive IMA-LNs. No skip metastasis occurred in IMA-LNs. We should choose the appropriate surgical methods to achieve better oncological results and reduce the incidence of postoperative complications.


2021 ◽  
pp. 102425
Author(s):  
A. Elkaouini ◽  
S. Berrajaa ◽  
M. Aabdi ◽  
M. Merbouh ◽  
S. El Mezzeoui ◽  
...  

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