Mosaic attenuation The term 'mosaic attenuation' is used to describe density differences between affected and non-affected lung areas. There are patchy areas of black and white lung. The role of the radiologist is to determine which part is abnormal: the black or the white lung. When ground glass opacity presents as mosaic attenuation consider: - Infiltrative process adjacent to normal lung - Normal lung appearing relatively dense adjacent to lung with air-trapping - Hyperperfused lung adjacent to oligemic lung due to chronic thromboembolic disease #Diagnosis #Radiology #Pulmonary #CTChest #MosaicAttenuation #Mosaic #Attenuation #Differential #RadiologyAssistant
