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