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Image Library
Image 7
RB-ILD pathology
At scanning magnification the biopsy shows two adjacent bronchovascular
bundles, each of which has respiratory bronchiolitis (within the
circles). The alveoli show variable size with some collapse (hypo) and
areas of hyperinflation from air trapping (hyper). Dense pigmented
macrophages (arrow) are present in the alveoli in the vicinity of the
respiratory bronchioles. There are more macrophages than would be expected
for respiratory bronchiolitis alone, and less than would be seen in
desquamative interstitial pneumonia, where the entire biopsy would be
dominated by alveoli filled with the "smokers-type" alveolar
macrophages. Click here for higher magnification >>
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