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Updated: Feb 28, 2026

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease
Published on: June 16, 2020
Desquamative Interstitial Pneumonia Complicated with IgG4-related Lung Disease
Hideaki Yamakawa1,2, Yoshihiro Suido1, Shinko Sadoyama1
1Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Japan.
Abstract:
As an idiopathic interstitial pneumonia, desquamative interstitial pneumonia (DIP) is an uncommon form of interstitial lung disease and is considered to be a smoking- or dust inhalation-related interstitial pneumonia in the majority of cases. However, the details regarding immunoglobulin G4 (IgG4)-related lung disease remain unclear and controversial. We herein report the first case of DIP complicated with IgG4-related lung disease. Even if a patient has a smoking history, we emphasize the importance of exploring the association between DIP and IgG4-related lung disease to clarify the pathogenesis of these two disorders.
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