Subpleural interstitial thickening

What it means

Increase in thickness of the subpleural interstitium.

Subpleural interstitial thickening can be difficult to recognize where the lung contacts the chest wall or mediastinum but is easy to delineate adjacent to the major fissure. Thickening of the fissure visible on high-resolution computer tomography may represent subpleural interstitial thickening.

Rare diseases that can present with this2

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Subpleural scarring