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-Aortic aneurysm
-Aortic dissection
-Hilar lymphadenopathy
-Inhalational anthrax. A widened mediastinum was found in 7 of the first 10 -victims infected by anthrax (Bacillus anthracis) in 2001
-Esophageal rupture - presents usually with pneumomediastinum and pleural effusion. It is diagnosed with water soluble swallowed contrast.
-Mediastinal mass
-Cardiac tamponade
-Pericardial effusion
-Thoracic vertebrae fractures in trauma patients
Ref: http://isrjem.org/May2003_GrandRounds.pdf
http://en.wikipedia.org/wiki/Widened_mediastinum
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgwW7hyphenhyphenwfcoxn2Ix2dGU_M2_lNYkRqRg0yzv1u5_lgbh-z0xx4P5uy_WCJJdMKts1TplTZk258MZv2d8fTD-7z8jvBrMZGwcODNUkOYySq8f5hL7cogoIzsKMxeaZ7Og0tPgvbE27_exA/s1600-h/tai+1.jpg
http://elearning.medicine.swu.ac.th/edu/images/stories/pre_clinic/MEDIASTINUM.ppt
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