Desquamative interstitial pneumonia histopathology

Kawabata Y, Takemura T, Hebisawa A, et al. Eosinophilia in bronchoalveolar lavage fluid and architectural destruction are features of desquamative interstitial pneumonia. Histopathology 2008 52 194—202. 

Desquamative interstitial pneumonia (DIP) and RBILD are clinicopathologic entities that occur mostly in current or former smokers (3,8,65,67,69-71). Because of their overlapping clinical features, pathogenesis, and histopathologic findings, most authorities regard these two entities as representing different ends of a spectrum of the same disease process (8,65,70,72,73). 

Figure 3 Histopathology of desquamative interstitial pneumonia (DIP). Alveolar spaces are filled with pigmented macrophages.

Craig PJ, Wells AU, Doffman S, et al. Desquamative interstitial pneumonia, respiratory bronchiolitis and their relationship to smoking. Histopathology 2004 45 275-282. 

---