Variable utility of mosaic attenuation to distinguish fibrotic hypersensitivity pneumonitis from idiopathic pulmonary fibrosis.
Joseph BarnettPhilip L MolyneauxBhavin RawalRezaur AbdullahSamanjit S HareRama VancheeswaranSujal R DesaiToby M MaherAthol U WellsAnand DevarajPublished in: The European respiratory journal (2019)
Mosaic attenuation is a frequent finding in IPF. However, the headcheese sign can be confidently considered as being inconsistent with a diagnosis of IPF and specific for FHP.