Approach to Mediastinal Masses . Clinical Presentation: 33\% of all masses present in patients less than 15 years old If small, usually asymptomatic and found incidentally (cautious work up) If large, usually present with respiratory distress (frantic work up) .
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
-This compartment contains fat, ascending aorta, lymph nodes, internal mammary artery and vein, adjacent osseous structures (ribs and sternum), thymus.
-Therefore will most likely see masses typical to these structures, ie a lymphoma in lymph nodes.
Structures in the superior mediastinal compartment include the thyroid gland, aortic arch and great vessels, proximal portions of the vagus and recurrent laryngeal nerves, esophagus and trachea.
Structures in the middle mediastinal compartment include the esophagus (which will not be visible unless there is a problem), vagus nerve, recurrent laryngeal nerve, heart, proximal pulmonary arteries and veins (hilar), trachea and root of the bronchial tree, and superior and inferior vena cava
Structures in the posterior mediastinal compartment include the descending aorta, adjacent osseous structures (the spine and ribs) and nerves, roots, spinal cord, and the azygous and hemiazygous veins.
Dx Teratoma, Anterior Mediastinal
Dx: Esophageal Duplication
PA and lateral chest films show a large, lobulated anterior mediastinal mass displacing the trachea to the right.
Dx:Lymphoma, Hodgkin, Anterior Mediastinal, Sternal Involvement
Dx:Lipoma, Posterior Mediastinal
Dx-Lymphoma, Non-Hodgkin, Anterior Mediastinal