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Cystic disease/congenital anomalies

Lobar hyperinflation

Reviewer: Elliot Weisenberg, M.D. (see Reviewers page)
Revised: 22 December 2011, last major update August 2011
Copyright: (c) 2003-2011, PathologyOutlines.com, Inc.


● Also called congenital lobar emphysema
● Infants or young children
● Abnormal bronchial development resulting in air trapping, perhaps due to hypoplasia of bronchial cartilage; associated with other cardiopulmonary anomalies
● Affects left or right upper lobe or right middle lobe
● May cause severe compression of other pulmonary lobes
● Not emphysema since no tissue destruction

Case reports

● 28 day old baby boy (Indian J Anaesth 2009;53:482)

Gross / clinical images

Intraoperative image

Gross image

Micro description

● Massive distention of alveolar spaces, but no tissue destruction

Micro images

Various images

End of Lung-nontumor > Cystic disease/congenital anomalies > Lobar hyperinflation

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