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 emphysemaAbbreviation: 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