Definition of Pneumomediastinum
1. Noun. The condition of having the presence of air in the mediastinum. ¹
¹ Source: wiktionary.com
Medical Definition of Pneumomediastinum
1.
SPONTANEOUS PNEUMOMEDIASTINUM, common; usually during the 2nd - 3rd decade, aetiology: rupture of marginally situated alveoli from sudden rise in intralveolar pressure: acute asthma, aspiration pneumonia, hyaline membrane disease, measles, giant cell pneumonia, coughing, vomiting, exercise, parturition, diabetic acidosis, tumour erosion of trachea/oesophagus, pneumoperitoneum, pneumoretroperitoneum, complication: air block (decreased venous return) TRAUMATIC PNEUMOMEDIASTINUM (rare), pulmonary interstitial emphysema (positive pressure ventilation), ruptured bronchus (commonly associated with pneumothorax), ruptured oesophagus (diabetic acidosis, alcoholic, Boerhaave) see also: Hamman sign
(12 Dec 1998)
Lexicographical Neighbors of Pneumomediastinum
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