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Features:<ref name=Ref_PPP197-8>{{Ref PPP|197-8}}</ref> | Features:<ref name=Ref_PPP197-8>{{Ref PPP|197-8}}</ref> | ||
*Brown pigmented airspace macrophages - ''smoker's macrophages'' - '''key feature'''. | *Brown pigmented airspace macrophages - ''smoker's macrophages'' - '''key feature'''. | ||
**Cannot count (distinct) granules. | |||
*Inflammation of the terminal bronchioles. | *Inflammation of the terminal bronchioles. | ||
Note: | Note: | ||
*The histologic features of RBILD may be present peri-tumoural. | *The histologic features of RBILD may be present peri-tumoural. | ||
*Hemosiderin-laden macrophages have coarse granules - that one can count. | |||
DDx: | DDx: | ||
*[[Desquamative interstitial pneumonia]]. | *[[Desquamative interstitial pneumonia]]. | ||
Image | ====Image==== | ||
*[http://www.nature.com/modpathol/journal/v19/n11/fig_tab/3800671f2.html RB-ILD (nature.com)]. | *[http://www.nature.com/modpathol/journal/v19/n11/fig_tab/3800671f2.html RB-ILD (nature.com)]. | ||
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