another name for cranial vena cava
The anatomy of the azygos and hemiazygos veins was normal, but the whole hemiazygos vein. and the terminal part of the azygos vein were enlarged. Also the cranial tributaries to the superior. vena cava (SVC) showed dilatations in their distal parts. The visceral surface of the liver had no relation to the IVC. Acase report of congenital interruption of the inferior vena cava with hemiazygos continuation. is presented with an explanation of the development of this variation. Its potential consequences are. pointed out and the most useful diagnostic methods are suggested. Superior vena cava obstruction (SVCO): This usually refers to a partial or complete obstruction of the SVC, often in the context of cancer (lung cancer, metastatic cancer, or lymphoma). The azygos vein joins it just before it enters the right atrium, at the upper right front portion of the heart. It is also known as the cranial vena cava in other animals. No valve divides the superior vena cava from the right atrium. Its lower half is covered by a fibrous pericardium, which is pierced by the SVC at the level of the 2nd costal cartilage. Recommended video: Superior vena cava. Anatomy and function of the superior vena cava. After circulating through the body systemically, deoxygenated blood returns to the right atrium of the heart through either the SVC, which drains the upper body, or the inferior vena cava (IVC) that drains everything below the diaphragm. The superior vena cava (SVC) is the superior of the two venae cavae, the great venous trunks that return deoxygenated blood from the systemic circulation to the right atrium of the heart. It is a large-diameter (24 mm), yet short, vein that receives venous return from the upper half of the body, above the diaphragm. (Venous return from the lower half, below the diaphragm, flows through the inferior vena cava.) The SVC is located in the anterior right superior mediastinum. It is the typical site of central venous access (CVA) via a central venous catheter or a peripherally inserted central catheter. Congenital interruption of the inferior vena cava (IVC) with azygos/. hemiazygos continuation is arare developmental variation usually associated with. other congenital anomalies, especially cardiac malformations (1–7). The superior vena cava (SVC, also known as the cava or cva) is a short, but large diameter vein located in the anterior right superior mediastinum. This sign is indicative of superior vena cava syndrome, commonly the result of a mass in the mediastinum. Superior vena cava syndrome (SVCS): This syndrome refers to a group of symptoms caused by the obstruction of the SVC.
The azygos vein.