Pulmonary interstitium

Last revised by Dr Owen Kang on 19 Aug 2016

Pulmonary interstitium is a collection of support tissues within the lung that includes the alveolar epithelium, pulmonary capillary endothelium, basement membrane, perivascular and perilymphatic tissues.

The pulmonary interstitium can be divided into three zones - axial, parenchymal and peripheral 1,2.

Related pathology

In interstitial lung disease, some diseases affect all zones while others have a predilection to affect a particular pulmonary interstitial zone 2:

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