pulmonary interstitial emphysema


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pul·mo·nar·y in·ter·sti·tial em·phy·se·ma

(PIE) (pŭl'mŏ-nar-ē in'tĕr-stish'ăl em'fă-sē'mă)
The presence of air in interstitial lung tissue as a result of excessive ventilatory pressure, usually seen in premature infants in whom high pressures are needed to overcome low lung compliance associated with deficiency of endogenous surfactant.

pulmonary interstitial emphysema

Abbreviation: PIE
The presence of air in the connective tissues of the lung; seen, e.g., in neonates treated with high-pressure mechanical ventilation. This condition can cause insufficient oxygenation and cystic lung damage.
See also: emphysema
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