panacinar emphysema

emphysema /em·phy·se·ma/ (em″fĭ-se´mah)

1. a pathologic accumulation of air in tissues or organs.

2. pulmonary e.emphysem´atous

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atrophic emphysema  senile e.

bullous emphysema  single or multiple large cystic alveolar dilatations of lung tissue.

centriacinar emphysema , centrilobular emphysema focal dilatations of respiratory bronchioles rather than alveoli, throughout the lung among normal lung tissue.

congenital lobar emphysema  overinflation of a lung, usually in early life in one of the upper lobes, with respiratory distress.

hypoplastic emphysema  pulmonary emphysema due to a developmental anomaly, with fewer and abnormally large alveoli.

infantile lobar emphysema  congenital lobar e.

interlobular emphysema  air in the septa between lung lobules.

interstitial emphysema  air in the peribronchial and interstitial tissues of the lungs.

intestinal emphysema  pneumatosis cystoides intestinalis.

mediastinal emphysema  pneumomediastinum.

obstructive emphysema  that associated with partial bronchial obstruction that interferes with exhalation.

panacinar emphysema , panlobular emphysema a type characterized by enlargement of air spaces throughout the acini.

pulmonary emphysema  abnormal increase in size of lung air spaces distal to the terminal bronchioles.

pulmonary interstitial emphysema  (PIE) a condition seen mostly in premature infants, in which air leaks from lung alveoli into interstitial spaces, often because of underlying lung disease or use of mechanical ventilation.

senile emphysema  overdistention and stretching of lung tissues due to atrophic changes.

subcutaneous emphysema  air or gas in subcutaneous tissues, usually caused by intrathoracic injury.

surgical emphysema  subcutaneous emphysema following surgery.

vesicular emphysema  panacinar e.

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pan·ac·i·nar emphysema (pn-s-nr, -när)

n.

See panlobular emphysema.

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panacinar emphysema

[pan′əsin′ər]

Etymology: Gk, pan, all + L, acinus, grape

one of the principal types of emphysema, characterized by relatively uniform enlargement of air spaces throughout the terminal bronchioles and alveoli. It is an inherited condition. Also called chronic hypertrophic emphysema, diffuse emphysema, ectatic emphysema, generalized emphysema, panlobular emphysema, vesicular emphysema.