Recognition of IIP patterns on HRCT

Idiopathic interstitial pneumonias are defined as an entity of interstitial lung diseases of unknown cause. They can be classified based on characteristic HRCT features that are associated with certain histological patterns.13

These HRCT patterns are unique for each of the entities included in the group of IIPs classified by the ATS/ERS according to certain morphologic patterns.13–15 (see table)

Recognition of IIP patterns on HRCT (adapted from Mueller-Mang 2007)