Case of the Day - 086 - 2025 08 13 - Three Density Sign and the Bronchiolocentric Interstitial Pneumonia (BIP) Pattern
Since a fibrotic HP pattern and a fibrotic HP as a clinical diagnosis can be confusing, the new guidelines propose that we use the term BIP for the pattern and HP for the clinical condition
56-years old with known hypersensitivity pneumonitis.
The video describes the case, the three density sign, earlier called the head cheese sign and the new label or terminology of bronchiolocentric interstitial pneumonia or BIP for short, which now defines the earlier used label of an HP pattern.
Video
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