Disease or Syndrome
Mediastinal Emphysema
Subclass of:
Pathological accumulation of air in tissues;
Mediastinal Diseases
Definitions related to mediastinal emphysema:
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(pneumomediastinum) Mediastinal emphysema is a condition in which air is present in the mediastinum. It can result from physical trauma or other situations that lead to air escaping from the lungs, airways or bowel into the chest cavity.NICHD Pediatric TerminologyU.S. National Cancer Institute, 2021
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(pneumomediastinum) The presence of air in the mediastinum. It is caused by injury, most often esophageal or intestinal perforation.NCI ThesaurusU.S. National Cancer Institute, 2021
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(pneumomediastinum) The presence of free air in the mediastinum.Human Phenotype Ontology (HPO)The Human Phenotype Ontology Project, 2021
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Presence of air in the mediastinal tissues due to leakage of air from the tracheobronchial tree, usually as a result of trauma.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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Pneumomediastinum (PM) was first described by Laennec in 1819 as a consequence of traumatic injury. Spontaneous pneumomediastinum (SPM) was reported in 1939 by Hamman, for whom the Hamman sign (see Physical) is named.WebMD, 2019
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Mediastinal emphysema, pocket of air surrounding the heart and central blood vessels contained within the mediastinum (the central cavity in the chest situated between the lungs) that usually forms as a result of lung rupture. When the alveoli (air sacs) of the lungs rupture because of traumatic...Encyclopedia Britannica, Inc., 2020
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