Inferior vena cava obstruction

The inferior vena cava (or IVC) is a large vein that carries the deoxygenated blood from the lower and middle body into the right atrium of the heart. It is formed by the joining of the right and the left common iliac veins, usually at the level of the fifth lumbar vertebra.The inferior vena cava is the lower ("inferior") of the two venae cavae, the two large veins that carry deoxygenated blood from the body to the right atrium of the heart: the inferior vena cava carries blood from the lower half of the body whilst the superior vena cava carries blood from the upper half of the body. [Source: Wikipedia ]

Synonyms

IVC obstruction

Obstruction of inferior vena cava

Obstruction of IVC

May Cause

Abnormal azygoesophageal recess

Ascites in an infant or child

Collateral paraureteral vein

Dampened waveform of hepatic vein

Dilated azygos system

Dilated azygos vein

Increased presacral space

Retrosternal mass

Varices

May Be Caused by

Common: Aortic aneurysm; Ascites; Hepatocellular carcinoma; Hepatomegaly; IVC filter; Liver mass; Lymphadenopathy; Pelvic lymphocele; Pregnancy; Renal cell carcinoma; Retroperitoneal abscess; Retroperitoneal cyst; Retroperitoneal hematoma; Retroperitoneal tumor; Surgical ligation of IVC; Thromboembolism; Wilms tumor
Uncommon: Adhesions; Angiosarcoma of inferior vena cava; Hydatid disease; Leiomyosarcoma of inferior vena cava; Lipoma of inferior vena cava; Lymphedema praecox; May-Thurner syndrome; Neoplasm; Pelvic varicosities; Radiation; Retroperitoneal fibrosis; Trauma; Web at junction of IVC and right atrium