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

pneumohemopericardium
pneumohemothorax
pneumohydrometra
pneumohydropericardium
pneumohydroperitoneum
pneumohydrothorax
pneumohypoderma
pneumokoniosis
pneumolith
pneumolithiasis
pneumologies
pneumology
pneumolysis
pneumomalacia
pneumomediastinum (current term)
pneumomediastinums
pneumomelanosis
pneumometer
pneumometers
pneumometry
pneumomycosis
pneumomyelography
pneumon-
pneumonectomies
pneumonectomy
pneumonia
pneumonia dissecans
pneumonia interlobularis purulenta
pneumonia malleosa

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