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Related to azygos: azygos fissure, azygos lobe
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Synonyms for azygos

occurring singly

References in periodicals archive ?
In AM patients, the portal venous blood most commonly drained into the inferior vena cava and occasionally into the renal veins, iliac veins, azygos veins, or right atrium.
b) Infrahepatic IVC drains into the Azygos vein (black straight arrow) that enters the thorax together with the aorta (star).
Surgical treatment of a rare case of epithelioid hemangioendothelioma of the azygos vein.
Contrast abdominopelvic CT showed an old complete thrombosis of the left common iliac vein, recent complete thromboses of the left venous junctions (external and internal iliac veins, common femoral deep and superficial veins, ascending lumbar vein and various presacral collaterals), dilated azygos vein, partial eccentric thrombosis of the IVC, approximately 18 mm lower than the flow level of the right renal vein, with a 5mm clot on a length of 27mm, with a reduced caliber on almost its entire length from the origin to the level of the caudate lobe.
Collotypes were obtained from the Venetian copy of the Tabula and, for completeness, a reproduction of the azygos venous system woodcut in the Venesection Letter of 1539.
In addition to the visualized tissues in this study, at least not precisely, it's possible to observe the right costocervical vein, the right azygos vein and the frenic nerve (PIGATTO et al.
Title: Vena Cava, Abnormalities, Azygos Vein, Congenital.
1) Cannulation of the accessory hemiazygos vein is rare but can happen when the accessory hemiazygos vein drains into the left brachiocephalic vein instead of the azygos vein normally.
Azygos venous tumor thrombus from renal cell carcinoma detected by F-18 FDG PET/CT.
The contents of this space may be subjected to the various pathologic processes, including lipoma, lymphangioma, vascular abnormalities like aortic aneurysm, hematoma, azygos and hemiazygos continuation of the inferior vena cava, and abscesses.
The Stanford classification divides stenoses into four types, with type III being complete obstruction with reverse circulation in the azygos vein.
However, magnetic resonance angiography (MRA) showed that the internal carotid arteries did not follow a typical cavernous course, but rather they ascended to the midline at the level of a hypoplastic sella turcica, where they fused with a short-segment azygos anterior cerebral trunk (figure 3).
In the thoracic region, the supracardinal veins give rise to the azygos and hemiazygos veins.