scholarly journals Anatomical Variation of the Azygos System of Veins - Case Report

2019 ◽  
Vol 36 (03) ◽  
pp. 207-209
Author(s):  
Josikwylkson Costa Brito ◽  
Vlademir Lourenço Falcão ◽  
Ana Luisa Castelo Branco Gomes ◽  
Deyvsom Felipe de Sousa Queiroga ◽  
Luciana Karla Viana Barroso

Introduction The azygos system of veins (ASV) is a very variable structure characterized as a communication between the inferior and superior vena cava, having the azygos vein (AV), the hemiazygos vein (HV), and the accessory hemiazygos vein (HAV) as its main components, which are responsible for the mediastinal viscera and for the thoracoabdominal wall drainage. The aim of the present study is to report an anatomical variation found in a male cadaver at the Laboratory of Anatomy of the University Center of UNIFACISA, Campina Grande, PB, Brazil. Case Report In the posterior mediastinum, the union of the HV, of the HAV, and of the 8th left posterior intercostal vein formed a common trunk at the level of the left 8th intercostal space, crossing the mediastinum posterior to the aorta artery, ending up in the AV, in the right hemithorax. Conclusion The study of the anatomical variations of the ASV is important and will provide knowledge for physicians not to confuse them with pathological processes in imaging exams. Moreover, it can provide safety in surgical approaches of the thorax.

2013 ◽  
Vol 2013 ◽  
pp. 1-4
Author(s):  
David Mazensky ◽  
Eva Petrovova ◽  
Jan Danko

The aim of this study was to describe the possible variations in the connection between the internal venous vertebral system and the cranial vena cava in rabbit using corrosion technique. The study was carried out on 40 adult New Zealand white rabbits. The venous system was injected by using Batson's corrosion casting kit number 17. We found the connection between the internal venous vertebral system and the cranial vena cava by means of the vertebral veins and the right azygos vein. The vertebral vein was present as independent tributary in 36 cases (90%). In the rest of the cases, it was found as being double, being triple, or forming a common trunk with other veins. The azygos vein was present as independent tributary of the cranial vena cava in 39 cases (97.5%). We found also a common trunk formed by the junction of the deep cervical vein, the right vertebral vein, and the azygos vein in one case (2.5%). The azygos vein received 6, 7, 8, or 9 pairs of dorsal intercostal veins. Documenting the anatomical variations in the rabbit will aid in the planning of future experimental studies and determining the clinical relevance on such studies.


2009 ◽  
Vol 62 (3-4) ◽  
pp. 189-192
Author(s):  
Branka Filipovic ◽  
Branislav Filipovic ◽  
Vladislav Vukomanovic ◽  
Nikola Milinic ◽  
Ljubica Stojsic-Dzunja

Introduction. Heterotaxy or situs ambiguus is a rare congenital disorder, characterized by abnormal situs with either left or right isomerism that usually coincides with A complex malformation. The classic left isomerism or bilateral left-sidedness or heterotaxy syndrome with polysplenia implies that patients have bilateral bilobed lungs, bilateral pulmonary atria, a centrally located liver, a stomach in indeterminate position, and multiple spleens, occasionaly associated with interruption of the inferior cava with azygos or hemiazygos continuation. Case report. We present a case of situs ambiguus associated with severe heart and vascular abnormalities in a 25-year-old male patient. On the admittance to our clinic the patient had history of biliary colic, moderate jaundice of the conjunctive and sclerae, and severe central cyanosis. The echocardiography revealed a large atrial septal defect, complete absence of the interventricular septum resulting in the single ventricle and the inversion of atria. The angiography obtained the hypoplastic inferior vena cava continuing with azygos vein that flowed into the left superior vena cava. The computerized tomography scans showed three splenuli in the right upper quadrant of the abdomen, and a single gallstone appeared in the left-positioned gallbladder. The contrast radiography showed complete transposition of the guts and stomach. Discussion and conclusion. To our knowledge, our patient with described severity of the anomalies had the longest life span in this part of Europe, although the longer survivors have been described in the other parts of the world. Furthermore, clinical characteristics of both left and right isomerism have been obtained in the patients with anatomically pronounced left isomerism.


2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Qian Luo ◽  
Wendong Qu ◽  
Cheng Chen ◽  
Yang Liu ◽  
Yating Wei ◽  
...  

1999 ◽  
Vol 41 (1) ◽  
pp. 79 ◽  
Author(s):  
Young Sun Kim ◽  
Seok Chol Jeon ◽  
Won Jin Moon ◽  
Yo Won Choi ◽  
Heung Suk Seo ◽  
...  

2020 ◽  
Vol 7 (5) ◽  
pp. 130-132
Author(s):  
José Aderval Aragão ◽  
Iapunira Catarina Sant’Anna Aragão ◽  
Felipe Matheus Sant’Anna Aragão ◽  
Paôla Cardoso ◽  
Fernanda Pimentel Cavaliere de Barros ◽  
...  

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