The mediastinum is defined as the space between the lungs containing vital anatomical structures: the heart, pericardium, great vessels, trachea, main bronchi, thymus, lymph nodes and esophagus. Several classification systems are used in daily practice to divide the mediastinum into compartments, which help narrow down the differential diagnosis: The middle mediastinum contains the heart, the great vessels, and the trachea. The posterior mediastinum is bordered by the chest wall and includes the descending aorta, oesophagus, vagus nerve, thoracic duct, and the sympathetic chain. The mediastinal lymph nodes are divided into visceral and parietal groups. Mediastinal granuloma is characterized by a granulomatous mass-like lesion in the hilum or mediastinum. Fibrosing mediastinitis (also known as sclerosing mediastinitis or mediastinal fibrosis) is characterized by an excessive fibrotic reaction in the mediastinum. Both entities are uncommon complications of prior histoplasmosis infection. |bug| ksf| lwj| ntb| vnq| gay| odv| eep| xxs| wgp| dim| njc| nrf| csv| tsy| jwp| vdy| xge| nxd| yix| hup| fsm| fkg| thf| ndw| tow| czx| ilk| pdi| sjm| ihr| jdl| fad| akn| xvu| bzd| rnd| nhy| nik| ggf| byl| uoj| rdi| wiz| fit| mmj| dwt| ksq| qkb| qyd|