Andrew Churg, Rebecca Hall, AnaMaria Bilawich, (2014) Respiratory Bronchiolitis With Fibrosis–Interstitial Lung Disease: A New Form of Smoking-Induced Interstitial Lung Disease. Archives of Pathology & Laboratory Medicine In-Press.
Early Online Release
Andrew Churg, MD; Rebecca Hall, MD; AnaMaria Bilawich, MD
From the Departments of Pathology (Dr Churg) and Radiology (Drs Hall and Bilawich), Vancouver General Hospital, Vancouver, British Columbia, Canada.
The recent pathology literature has described a new form of localized interstitial fibrosis associated with heavy cigarette smoking. This lesion has been referred to by various names, including respiratory bronchiolitis–interstitial lung disease with fibrosis,1 airspace enlargement with fibrosis,2 and smoking-related interstitial fibrosis.3 We have suggested that, to avoid confusion with other forms of smoking-related interstitial lung disease (ILD), the lesion be referred to as respiratory bronchiolitis with fibrosis (RBF).4 Most importantly, we have found that this pathologic abnormality often has a distinctive high-resolution computed tomography (HRCT) correlate, such that in many cases RBF should be diagnosable on the basis of imaging.4 The purpose of this short piece is to suggest how RBF fits into the general category of smoking-related ILD, and particularly to compare it with two possibly related forms of accepted smoking-related ILDs: respiratory bronchiolitis–interstitial lung disease (RBILD) and desquamative interstitial pneumonia (DIP).