Items tagged “#r21”
2 results found
Article
Three attenuation pattern
The three attenuation pattern or three density pattern was formerly known as the head cheese sign and refers to the presence of well-defined areas of decreased, normal and increased attenuation on inspiratory CT 6.
Pathology
The resultant mosaic is due to lobular air-trapping with reflex hypop...
Article
Hypersensitivity pneumonitis
Hypersensitivity pneumonitis, previously known as extrinsic allergic alveolitis, represents a group of immune-mediated pulmonary disorders characterized by an inflammatory and/or fibrotic reaction affecting the lung parenchyma and small airways.
Its diagnosis relies on a constellation of findin...