Left azygos vein. Medical search. Frequent questions

The abdominal esophagus is supplied by the ascending branch of the left gastric artery and branches of the left inferior phrenic artery. (medscape.com)
Although the venous drainage of the esophagus is not described here, the azygos vein serves as a good landmark during surgery. (medscape.com)
this groove becomes less distinct below, owing to the inclination of the lower part of the esophagus to the left of the middle line. (bionity.com)
It passes beneath the aortic arch, crosses in front of the esophagus, the thoracic duct, and the descending aorta, and has the left pulmonary artery lying at first above, and then in front of it. (bartleby.com)
The duct crosses to the left side of the aorta ventral to the body of the fifth thoracic vertebra and continues cranioventral across the left side of the esophagus to empty at the junction of the left jugular vein and cranial vena cava. (dvm360.com)
The esophagus is supplied by the esophageal branches of the inferior thyroid artery , the thoracic aorta , and the left gastric arteries . (amboss.com)
The veins of the esophagus drain into the systemic circulation via the azygos and the hemiazygos veins and into the portal circulation via the left gastric veins . (amboss.com)
Right unilateral thoracic cage width on the level of vena azygos crossing the esophagus was measured by the horizontal distance between the esophagus and parietal pleura on preoperative computer tomography. (bvsalud.org)
the recurrent laryngeal nerves lie in the tracheoesophageal grooves, and the thoracic duct is to the left of the esophagus. (medscape.com)
The azygos vein crosses in front of the esophagus on the right. (medscape.com)
In the posterior mediastinum, the esophagus continues behind the left main bronchus and right pulmonary artery and comes to lie in front of the descending thoracic aorta at the esophageal hiatus of the diaphragm. (medscape.com)
The thoracic duct lies to the left of the esophagus in the superior mediastinum and behind it in the posterior mediastinum. (medscape.com)
However, this technique is difficult when the tumor is large and located on the left side wall of the esophagus, within the upper mediastinum. (omicsdi.org)
The third and most prominent angulation occurs after traversing the diaphragmatic crura and above the esophagogastric junction, where the terminal esophagus turns to the left (see Figure 1). (sts.org)
The second inclination to the left begins about the seventh thoracic vertebra, and continues to the end of the esophagus, being considerably increased as the diaphragm is approached. (co.ma)
Above the arch of the aorta, the right and left pleurae approach each other behind the esophagus. (dartmouth.edu)
The first curve begins a little below the commencement of the esophagus and inclines to the left as far as the root of the neck and returns to the midline at the level of fifth thoracic vertebra. (medscape.com)
The second curve to the left is formed as the esophagus bends to cross the descending thoracic aorta, before it pierces the diaphragm. (medscape.com)

It is formed by the union of the ascending lumbar veins with the right subcostal veins at the level of the 12th thoracic vertebra, ascending to the right of the descending aorta and thoracic duct, passing behind the right crus of diaphragm, anterior to the vertebral bodies of T12 to T5 and right posterior intercostal arteries. (wikipedia.org)
The computed tomography corroborated these findings and additionally showed a left superior vena cava and an abnormal origin of the coronary arteries. (scirp.org)
The abdominal aorta (Fig. 531) begins at the aortic hiatus of the diaphragm, in front of the lower border of the body of the last thoracic vertebra, and, descending in front of the vertebral column, ends on the body of the fourth lumbar vertebra, commonly a little to the left of the middle line, (* 103 by dividing into the two common iliac arteries. (theodora.com)
in the thorax, it is covered from before backward by the manubrium sterni, the remains of the thymus, the left innominate vein, the aortic arch, the innominate and left common carotid arteries, and the deep cardiac plexus. (bartleby.com)
on its left side are the left recurrent nerve, the aortic arch, and the left common carotid and subclavian arteries. (bartleby.com)
Unlike most veins and arteries, it does not have a corresponding vein on the left side of the body, thus explaining its name, which means "unpaired" in Greek. (thehealthboard.com)
Although many veins and arteries in the body have a similar structure and function in all individuals, the azygos vein system can be configured differently from person to person. (thehealthboard.com)
In the dog, the caudal thoracic duct courses dorsal and to the right of the aorta, lateral to the intercostal arteries, and ventral to the azygos vein. (dvm360.com)
The gland is drained by veins that accompany the arteries. (pediagenosis.com)
We can now see that symptoms of paralysis require a thorough examination of the structures surrounding the central nervous system - veins, arteries, cerebrospinal fluid, bones, muscles, ligaments. (mscureenigmas.net)
but below the bifurcation of the trachea, as already explained, it advances into the cavity of the posterior mediastinum, and is soon separated from the vertebral column by the vena azygos, the thoracic duct, the upper five aortic intercostal arteries of the right side, and in its lower part by the thoracic aorta as well. (co.ma)
Primary target diagnoses include hypoplastic left heart syndrome, pulmonary atresia with intact ventricular septum, tetralogy of Fallot, total anomalous pulmonary venous return, transposition of the great arteries, tricuspid atresia, and truncus arteriosus. (cambridge.org)
The book presents the complete anatomy of the arteries, veins, and lymphatic system by body region. (google.co.uk)
Neoplasms located in the vasculature system, such as ARTERIES and VEINS. (lookformedical.com)

The ascending lumbar veins are paired vertically-oriented veins of the posterior abdominal wall. (radiopaedia.org)

The azygous vein also receives drainage from all the intercostal veins on the right, except for supreme intercostal vein (first intercostal vein). (wikipedia.org)
When enlarged, suggests obstruction of SVC/IVC, with drainage through the azygos/hemiazygos system. (myesr.org)
The tip of the CVC was located peripherally in the venous drainage of the left lung. (biomedcentral.com)
In the embryo, initially, the cardinal veins form the main venous drainage. (docest.com)
Diagram of hepatic venous drainage depicts the small veins that drain from the caudate lobe and adjacent part of the right lobe directly into the inferior vena cava. (medscape.com)

The loss of the intrahepatic segment of IVC with azygous and hemiazygos continuation happens in 0.6% of patients diagnosed for congenital heart disease and usually occurs simultaneously with situs inversus, asplenia, or polysplenia, persistent left superior vena cava (SVC), and congenital pulmonary venolobar syndrome. (wikipedia.org)
We present a rare case of an adult woman with L-TGA associated with Ebstein's anomaly, left superior vena cava and pulmonary hypertension diagnosed by non-invasive imaging and computed tomography. (scirp.org)
Ostium secundum atrial septal defect of 1.1 cm with left to right shunt, great vessels side to side, the pulmonary artery located to the right and aorta to the left. (scirp.org)
A subsequent contrast-enhanced CT scan demonstrated a left-sided partial anomalous pulmonary venous return. (biomedcentral.com)

Findings: there is an oval mediastinal mass at the level of the azygos vein (A, arrow). (myesr.org)
In this context, the mediastinal mass probably represents an enlarged azygos vein secondary to interruption of the IVC, an abnormality which accompanies the heterotaxy syndromes. (myesr.org)
There is a double contour of the left mediastinal line ( yellow arrows ). (myesr.org)
We opened the superior mediastinal pleura cranially and caudally from the arch of the azygos vein and expanded the superior mediastinum after dividing the azygos vein. (omicsdi.org)

They can be considered the abdominal counterpart of the azygos and hemiazygos veins 1 . (radiopaedia.org)
The azygos and hemiazygos veins were dilated. (siemens-healthineers.com)

ascends vertically in the posterior abdominal wall, communicating with the lumbar veins as it crosses them. (radiopaedia.org)
Sometimes the vein system feeds different areas of the abdomen, In some cases, it not only serves the abdominal and thoracic walls, it also receives blood from bronchial and gonadal veins. (thehealthboard.com)
38 An azygos orifice in the abdominal walls. (languagehat.com)
This means the fundus and the proximal stomach lie anterolateral to the spine, with the greater curvature facing the posterior subdiaphragmatic space and the anterior gastric wall facing the left abdominal wall. (sts.org)
Key words: Double left renal vein, retro-aortic vein, renal collar, abdominal aortic aneurysm. (docest.com)
Brenerin 1974,had mentioned two patients with DLRV associated with abdominal aortic aneurysm in a series of31 major venous anomalies of the renal vein and the venacava(11). (docest.com)

Both branches of the left colic artery lie immediately behind the peritoneum, and each branch crosses anterior to the ureter and the internal spermatic vessels. (co.ma)
It enters the mesentery of the pelvic colon, crosses the front of the left common iliac artery, descends into the pelvis minor as far as the third piece of the sacrum, or, in other words, the junction between the pelvic colon and the rectum, and divides into two branches which pass downwards on the sides of the rectum. (co.ma)

Some of these tributaries on the left side are the hemiazygos vein and the posterior intercostal veins. (thehealthboard.com)

Thus, the blood drains into the right azygos line. (wikipedia.org)
The vein which drains the foot and leg. (lookformedical.com)

The trachea and oesophagus is located medially to the arch of the azygous vein. (wikipedia.org)
The "arch of the azygos vein" (arcus venae azygos) is an important anatomic landmark. (wikipedia.org)
As an anatomical variation in 1-2% of the population, the arch can be displaced laterally, thereby creating a pleural septum separating an azygos lobe from the upper lobe of the right lung. (wikipedia.org)
In my experience, when you see a double aortic arch, the right one is usually higher than the left. (myesr.org)
On the right side the tube comes into relation with the arch of the vena azygos, whilst the right pleura clothes it both below and above that level. (co.ma)

The Right Bronchus ( bronchus dexter ), wider, shorter, and more vertical in direction than the left, is about 2.5 cm. long, and enters the right lung nearly opposite the fifth thoracic vertebra. (bartleby.com)

CT reconstructions show the hemiazygos vein (arrows) parallel to aorta (A), draining blood from the brachiocephalic veins. (myesr.org)
Further, the left artery gives oesophageal branches which anastomose with cesophageal branches of the aorta and of the left gastric artery, whilst from the artery of the right side minute branches pass to the inferior vena cava. (co.ma)
in the middle region, the aorta, and lower down the left pleura again, for a little way, before the oesophagus pierces the diaphragm. (co.ma)
Here, both the veins were opening into the inferior vena cava.One is preaortic and the other being a post aortic channel, formed a ring around the aorta called circumaortic, or persistent renal collar. (docest.com)
Normally, only the preaorticanastomosis persist and develops into the left renal vein , which does pass infront of the aorta and renal arteriesto open into the IVC. (docest.com)

The esophageal ends, particularly the distal segment in a TEF, are often readily visualized once the azygos vein has been divided or reflected. (medscape.com)
Portal hypertension results in esophageal varices , which are supplied by the left gastric veins . (amboss.com)

On the left side are the left crus of the diaphragm, the left celiac ganglion, the ascending part of the duodenum, and some coils of the small intestine. (theodora.com)
The esophagogastric junction (cardia), therefore, lies in the abdomen below the diaphragm to the left of the midline at the level of T11. (medscape.com)
Diverging from its fellow, each artery runs upwards and laterally, on the corresponding crus of the diaphragm-that on the right side passing posterior to the inferior vena cava, that on the left side posterior to the oesophagus and just before reaching the central tendon of the diaphragm each divides into medial and lateral terminal branches. (co.ma)
Fig. E, at the 9th thoracic verte- bra, shows the œsophagus in- clining to the left just before piercing the diaphragm. (co.ma)
Lower down the left nerve winds round to the anterior, whilst the right turns to the posterior surface of the oesophagus, and in this relation they pass with the tube through the diaphragm to reach the stomach. (co.ma)

Azygos and hemiazygos continuation of the inferior vena cava (IVC) was not common in daily life. (wikipedia.org)
Azygos and hemiazygos continuation of the IVC is rare especially when it is not associated with congenital heart disease. (wikipedia.org)
Maybe azygos continuation of IVC as part of an heterotaxy syndrome? (myesr.org)
it is a continuation of the popliteal vein and becomes the external iliac vein. (lookformedical.com)
It accompanies the femoral artery as a continuation of the popliteal vein through the upper two-thirds of the thigh. (drbeen.com)

Overall narrowing or blocking of the veins that drain the upper body causes deoxygenated blood to pool in the brain, causing edema , and it slows the delivery of oxygenated blood back to the brain, depriving the brain of much-needed oxygen . (thehealthboard.com)
This vein was shown to drain into the left brachiocephalic vein (Fig. 2 ). (biomedcentral.com)
Veins in the neck which drain the brain, face, and neck into the brachiocephalic or subclavian veins. (lookformedical.com)
The varices (V) drain into an enlarged azygos vein (I, arrow). (myebr.org)

Major tributaries are the hemiazygos vein and accessory hemiazygos vein, draining into the azygous vein at the midthoracic level. (wikipedia.org)

The rounded shadow at the aortic knob is a typical aortic nipple, secondary to an enlarged left superior intercostal vein (LSIV) which joins superiorly ( red arrow ) the brachiocephalic vein and inferiorly the hemiazygos vein ( yellow arrow ). (myesr.org)

In the PA and lateral x-ray the azygos vein is enlarged, with an enlarged right hilum respect to the left one. (myesr.org)
The patient was placed in the left lateral position. (omicsdi.org)
As a result, the esophagogastric junction takes position lateral to the xiphoid process of the sternum and to the left of the 12th vertebral body. (sts.org)
There is increased opacity of the left upper quadrant of the abdomen and the lateral wall of the stomach is indented, suggesting splenomegaly. (myebr.org)

Can you differentiate a lymph node from the azygos vein? (myesr.org)

Other tributaries include the right bronchial veins and veins from pericardium, mediastinum, and oesophagus. (wikipedia.org)
While there is the hemiazygos vein and its accessory on the left side of the body, they are considered tributaries of the azygos vein rather than its left-side equivalent. (wikipedia.org)
The venæ cavæ and azygos veins, with their tributaries. (wikipedia.org)
Veins that perform a similar function can be found on the body's left side, but these are considered tributaries and thus only parts of this vein system rather than equivalent body structures. (thehealthboard.com)

Ultrasound showed bilateral pleural effusions, ascites, and no flow within the hepatic veins but a patent IVC. (medscape.com)

Blood in azygos vein empties into the superior vena cava, which then carries it to the heart to be recirculated. (thehealthboard.com)
Blood in the azygos vein empties into the superior vena cava, which takes it to the heart for re-circulation. (thehealthboard.com)
the inferior mesenteric vein empties into the splenic vein, the superior mesenteric vein joins the splenic vein to form the portal vein. (lookformedical.com)

The azygos vein is a vein running up the right side of the thoracic vertebral column draining itself towards the superior vena cava. (wikipedia.org)
The azygos vein transports deoxygenated blood from the posterior walls of the thorax and abdomen into the superior vena cava. (wikipedia.org)
Thus, it is crucial to diagnose the enlarged azygos vein at the confluence with the superior vena cava and in the retrocrural space to prevent misdiagnosis as a right-sided paratracheal mass. (wikipedia.org)
The contrast material in the superior vena cava (SVC) and brachiocephalic veins is diluted due to recirculation, and no longer causes streak artifacts. (siemens-healthineers.com)
Azygos vein, is a branch of the upper trunk of the vena cava, arising on the right side. (languagehat.com)
A vein on either side of the body which is formed by the union of the external and internal iliac veins and passes upward to join with its fellow of the opposite side to form the inferior vena cava. (lookformedical.com)

And the opacity in the aortic knob must be the left superior intercostal vein. (myesr.org)
The persistence of 'renal collar' gives rise to double left renal veins, preaortic and post aortic both draining into the IVC(6). (docest.com)

It has been proposed that the azygos vein develops by originally draining to the posterior cardinal vein and then to the longitudinal venous channel. (wikipedia.org)
Following retrogression of the left common cardinal vein, the left azygos vein loses contact with the posterior cardinal vein. (wikipedia.org)
During the 5th to 7th week, paired longitudinal channels, the subcardinal and the supracardinal veins appear by the sides of the posterior cardinal veins. (docest.com)

Abstract: During routine dissection for the students in the years 2006 -20011,an adult male cadaver was observed to have double left renal vein. (docest.com)
Double left renal vein is a rare developmental anomaly, but carries immense surgical importance. (docest.com)
Here, we are reporting about a case of double renal vein and its embryological basis. (docest.com)
During the study, a rare variation i.e. double renal vein was observed. (docest.com)
The right renal vein was observed to be normal. (docest.com)
The left renal vein is about three times longer (7.5cm) than the right(2.5cm) one (3,4). (docest.com)
Double left renal vein is a rare developmental anomaly.Few literature is available reporting such cases (9,10,11,12). (docest.com)
Variations of left renal vein are important to surgeons. (docest.com)

The ascending lumbar vein ascends posterior to the psoas major muscle and anterior to the lumbar transverse processes. (radiopaedia.org)
Posteriorly, it is separated from the lumbar vertebræ and intervertebral fibrocartilages by the anterior longitudinal ligament and left lumbar veins. (theodora.com)
In Fig. C, at the C level of the 5th thoracic vertebra, the left bronchus is seen in relation to the anterior surthe face of œsophagus. (co.ma)
In the adult, the anterior borders of the right and left pleurae probably meet at or near the median plane during a part of their course. (dartmouth.edu)
The left anterior border sometimes diverges to leave a part of the pericardium uncovered (bare area). (dartmouth.edu)

These two veins are located at the opposite side of the vertebral column. (wikipedia.org)
The azygos vein is located along the right side of the thoracic vertebral column, and it carries deoxygenated blood from areas of the chest and abdomen to the heart. (thehealthboard.com)

A compression of ILIAC VEIN that results in a decreased flow in the vein and in the left LOWER EXTREMITY due to a vascular malformation. (lookformedical.com)

Elarged azygos vein because of inferior vein cava agenesia! (myesr.org)

This is referred to as chronic cerebrospinal venous insufficiency (CCSVI), which can lead to decreased brain function as well as stenosis, or abnormal narrowing, of the azygos vein. (thehealthboard.com)

However, the azygos vein is occasionally located in the midline or two independent veins may be present like in early embryonic development. (wikipedia.org)
it is very short (only 5 cm long) and lies in front of C6 and C7 (covered with prevertebral fascia), slightly to the left of the midline. (medscape.com)

The azygos vein carries deoxygenated blood from the chest and abdomen to the heart. (thehealthboard.com)
Radiograph of the abdomen taken at the same time shows the liver in the left upper quadrant (D, arrow) and inversion of the colon. (myesr.org)
Observation : During routine dissection of the abdomen, an adult male cadaver presented double left renal veins (DLRV). (docest.com)
Portal vein calcification is typically linear or strandlike and lies transversely across the upper abdomen or slopes upward and obliquely toward the liver hilum. (medscape.com)

It enters the root of the left lung opposite the sixth thoracic vertebra. (bartleby.com)
In its first curvature to the left the divergence is greatest opposite the third thoracic vertebra. (co.ma)

The attending anesthesiologist placed a central venous catheter (CVC) in the right internal jugular vein. (biomedcentral.com)
During surgery, a CVC was inserted into the left internal jugular vein and the patient was admitted to the ICU again. (biomedcentral.com)
The CVC was removed, and a new one was placed in the right internal jugular vein. (biomedcentral.com)

There is no middle lobe on the left lung, though there is a lingula. (bionity.com)
The left bronchus has no eparterial branch, and therefore it has been supposed by some that there is no upper lobe to the left lung, but that the so-called upper lobe corresponds to the middle lobe of the right lung. (bartleby.com)
The liver is a big, ruddy-brown gland that is divided into four lobes-the right, the left, a median cystic lobe, and a posterior caudate lobe. (microbiologynote.com)
The veins tend to be spared in hepatic venous occlusion in patients with Budd-Chiari syndrome, giving rise to hypertrophy of the caudate lobe and adjacent part of the right lobe. (medscape.com)

Ruminants (such as sheep and cows) have paired azygos veins. (wikipedia.org)
Humans, dogs and cats do not have paired azygos veins, but cows, sheep and other ruminants do. (thehealthboard.com)

to the deviation of the tube to the left in the inferior part of the neck, its relation to the carotid sheath and thyreoid gland is much more intimate on the left than on the right side. (co.ma)

When associated with concomitant portal vein thrombosis, calcification may be seen in the portal vein after prolonged portal hypertension. (medscape.com)

Some doctors and scientists believe that further study and treatment of CCSVI and stenosis of the azygos vein system could result in new, more effective treatments for multiple sclerosis. (thehealthboard.com)

The origin and anatomical course of the azygos vein are quite variable. (wikipedia.org)

Sometimes the thoracic and cervical veins can become compromised so that they do not function as well as they should. (thehealthboard.com)
The relationships to the cervical and thoracic vertebrae as radiologic landmarks are indicated on the left of the figure. (sts.org)
The thoracic duct lies on the left side at the level of the sixth cervical vertebra. (medscape.com)

in which he gave an improved though imperfect anatomy of the vena azygos, and maintained that blood should always be drawn from the right arm, because of the near connection between its vessels and that vein. (todayinsci.com)

The Left Bronchus ( bronchus sinister ) is smaller in caliber but longer than the right, being nearly 5 cm. long. (bartleby.com)
Immediately below that the cesophagus is crossed by the left bronchus (Fig. 908, C), and in the rest of its thoracic course it lies in the closest relation to the back of the pericardium. (co.ma)
After separating the intercostal muscles near the angle of the rib, we passed a muscle flap between the azygos vein and bronchus and sutured it securely to the fistula. (springeropen.com)
Furthermore, CT findings suggested that it was infiltrating both lower lungs and left primary bronchus (Fig. 1 a). (springeropen.com)

Lung infiltrates, particularly those involving the left lung, usually require treatment before the operation. (medscape.com)
One of these, the oblique fissure, separates the inferior from the middle and superior lobes, and corresponds closely with the fissure in the left lung. (bionity.com)
The superior and inferior lobes are similar to their counterparts on the left lung. (bionity.com)
its total capacity is greater and it weighs more than the left lung. (bionity.com)
Although both lungs have lobes, the right lung has four and the left lung has none. (microbiologynote.com)

Diagram showing completion of development of the parietal veins. (wikipedia.org)

A computed tomography (CT) scan showed ischemia of the small intestines as a result of superior mesenteric vein thrombosis. (biomedcentral.com)
A condition caused by one or more episodes of DEEP VEIN THROMBOSIS, usually the blood clots are lodged in the legs. (lookformedical.com)

Anatomy6

Diseases1

Anthropology, Education, Sociology and Social Phenomena2

Named Groups3

Health Care1

Esophagus18

Arteries14

Ascending lumbar veins1

Drainage5

Pulmonary4

Mediastinal4

Hemiazygos veins2

Abdominal6

Crosses2

Intercostal veins1

Drains2

Arch5

Fifth thoracic vertebra1

Aorta5

Esophageal2

Diaphragm5

Continuation5

Drain4

Azygous vein1

Brachiocephalic vein1

Lateral4

Lymph1

Tributaries4

Pleural1

Empties3

Vena cava6

Aortic2

Posterior cardinal3

Renal vein8

Anterior5

Vertebral column2

Lower Extremity1

Inferior vein1

Cerebrospinal1

Midline2

Abdomen4

Thoracic vertebra2

Internal jugu3

Lobe4

Cows2

Carotid1

Portal vein1

Stenosis1

Anatomical1

Cervical3

Anatomy1

Bronchus4

Lung5

Parietal1

Thrombosis2