Mediastinal widening

widened mediastinum

Conditions associated with mediastinal widening:
 * Rupture of aorta or brachiocephalic arteries
 * Rupture of esophagus
 * Rupture of thoracic duct
 * Aortic aneurysm
 * Aortic dissection
 * Hilar lymphadenopathy
 * Mediastinal mass
 * Mediastinitis
 * Pericardial effusion
 * Venous hemorrhage (e.g., trauma or malpositioning of central venous line)
 * Venous congestion associated with congestive heart failure
 * Atelectasis abutting the mediastinum
 * Magnification and geometric distortion on supine radiograph