posterior mediastinum

(redirected from Posterior mediastinal)

pos·te·ri·or me·di·as·ti·num

lies between the pericardium anteriorly and the vertebral column posteriorly and below the level of the plane that interesects the sternal angle and the T4-5 intervertebral disc. It contains the descending aorta, thoracic duct, esophagus, azygos veins, and vagus nerves.

posterior mediastinum

the irregularly shaped lower part of the mediastinum parallel with the vertebral column. It is bounded ventrally by the pericardium, inferiorly by the diaphragm, dorsally by the vertebral column from the fourth to the twelfth thoracic vertebra, and laterally by the mediastinal pleurae. It contains the bifurcation of the trachea, two primary bronchi, the esophagus, the thoracic duct, many large lymph nodes, and various vessels, such as the thoracic part of the aortic arch. Compare anterior mediastinum, middle mediastinum, superior mediastinum.
References in periodicals archive ?
Kim will lead a presentation on Spinal Cord Ischemia and the Resection of Posterior Mediastinal Tumors.
71 highlight the versatility of median sternotomy (MS) in dealing with children requiring treatment of penetrating mediastinal trauma, anterior and posterior mediastinal masses, acquired tracheo-oesophageal fistulas secondary to button battery impaction, bronchial foreign bodies and bilateral pulmonary metastases secondary to malignancy.
Chest radiography depicted bilateral posterior mediastinal masses (Fig.
This area of posterior parietal pericardial dissection around the paired pulmonary veins could allow a path of ingress of posterior mediastinal, peribronchial lymph to the pericardial space; absorbed oral fat in the form of chylomicrons could then enter into the pericardial space in this fashion.
Computerized axial tomography (CAT) scan showed a posterior mediastinal mass compressing the oesophagus, and magnetic resonance imaging (MRI) revealed high signal intensities on both T1 and T2 weighted images suggestive of bronchogenic cyst (Fig.
Mediastinal adenopathy occurs in 60% of all cases and includes the following nodal subgroups: prevascular, aortopulmonary, paratracheal, subcarinal and posterior mediastinal.
Neurogenic tumors constitute the majority of posterior mediastinal mass lesions (23) (Figure 11).
This modification permitted us to resect all anterior and most posterior mediastinal goiters, even those that contained cancer (but without extracapsular extension) without the need for sternotomy.
This report describes the case of a 37-year-old man with a 4-month course of dysphagia secondary to lower esophageal invasion by the posterior mediastinal extension of a lung IPT.
Radiologic scans of the chest and abdomen revealed right hilar, mediastinal, celiac, and peripancreatic lymphadenopathy and a posterior mediastinal mass extending inferiorly into the upper abdomen and posteriorly into the vertebrae (Figure 1, A).
Pathology included penetrating mediastinal trauma (1), anterior and posterior mediastinal masses (4), acquired tracheooesophageal fistulas secondary to button battery impaction (2), bronchial foreign bodies (2) and bilateral pulmonary metastases secondary to malignancy (5).

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