"The spelling azygous when referring to the vein is incorrect, regardless of whether British or American English is used 1. Azygous is a word in English meaning 'without pair', but in the context of this vein, azygos is the sole correct spelling (see Terminologia Anatomica). Azygous is allowable for an azygos anterior cerebral artery as in this sense it is being used to mean an unpaired ACA."
"The spelling azygous when referring to the vein is incorrect, regardless of whether British or American English is used 1. Azygous is a word in English meaning 'without pair', but in the context of this vein, azygos is the sole correct spelling (see Terminologia Anatomica). Azygous is allowable for an azygos anterior cerebral artery as in this sense it is being used to mean an unpaired ACA."
"The spelling azygous when referring to the vein is incorrect, regardless of whether British or American English is used 1. Azygous is a word in English meaning 'without pair', but in the context of this vein, azygos is the sole correct spelling (see Terminologia Anatomica). Azygous is allowable for an azygos anterior cerebral artery as in this sense it is being used to mean an unpaired ACA."
"The spelling azygous when referring to the vein is incorrect, regardless of whether British or American English is used 1. Azygous is a word in English meaning 'without pair', but in the context of this vein, azygos is the sole correct spelling (see Terminologia Anatomica). Azygous is allowable for an azygos anterior cerebral artery as in this sense it is being used to mean an unpaired ACA."
"Often there is a valve in the arch within 4 cm of its orifice in the SVC, which can be seen in about two-thirds of CT cases with reflux of contrast into the azygos arch 2. When present and seen with contrast reflux, the valve is often (82%) associated with a bulge of the valve sinus 2. Contrast isolated in the sinuses of this valve may be mistaken for hyperattenuating foci in the vicinity, such as calcified lymph nodes, surgical clips or tracheal calcification."
"anterior: IVC, SVC"
"may drain into the SVC, or rarely into the right brachiocephalic or subclavian vein, intrapericardial SVC, or directly into the right atrium 3"
"may drain into the SVC, or rarely into the right brachiocephalic or subclavian vein, intrapericardial SVC, or directly into the right atrium 3"
"The spelling azygous when referring to the vein is incorrect, regardless of whether British or American English is used 1. Azygous is a word in English meaning 'without pair', but in the context of this vein, azygos is the sole correct spelling (see Terminologia Anatomica). Azygous is allowable for an azygos anterior cerebral artery as in this sense it is being used to mean an unpaired ACA."
"If originating at a lumbar level, the azygos vein typically enters the chest through the aortic hiatus (T12 vertebral level), although may enter by piercing the right crus of the diaphragm. It then ascends in the posterior mediastinum before arching over the right main bronchus posteriorly at the root of the right lung (at the level of T5-T6), where it joins the superior vena cava at the azygovenous junction. This arch of the azygos vein (arcus venae azygos) is an important anatomical landmark."
"If originating at a lumbar level, the azygos vein typically enters the chest through the aortic hiatus (T12 vertebral level), although may enter by piercing the right crus of the diaphragm. It then ascends in the posterior mediastinum before arching over the right main bronchus posteriorly at the root of the right lung (at the level of T5-T6), where it joins the superior vena cava at the azygovenous junction. This arch of the azygos vein (arcus venae azygos) is an important anatomical landmark."
"If originating at a lumbar level, the azygos vein typically enters the chest through the aortic hiatus (T12 vertebral level), although may enter by piercing the right crus of the diaphragm. It then ascends in the posterior mediastinum before arching over the right main bronchus posteriorly at the root of the right lung (at the level of T5-T6), where it joins the superior vena cava at the azygovenous junction. This arch of the azygos vein (arcus venae azygos) is an important anatomical landmark."
"posterior: vertebral bodies of at least T5-T12, anterior longitudinal ligament, right posterior intercostal arteries"
Expected headings
"Terminology"
"Course"
"The Ancient Greek root "ζυγόν" (zygon) means a yoke, as holds two oxen together, and thus came to mean a pair, and the prefix "α-" (a) means not; hence, azygos means a non-paired structure."