Fig. 1
From: Diagnostic and prognostic implications of family history of fibrotic interstitial lung diseases
Flow chart of grouping based on final diagnosis
IPF: idiopathic pulmonary fibrosis, fHP: fibrotic hypersensitivity pneumonitis, uILD: unclassifiable interstitial lung disease, CPFE: combined pulmonary fibrosis and emphysema, SRIF: smoking-related interstitial fibrosis, CTD-ILD: connective tissue disease associated interstitial lung disease. Other include ANCA-associated vasculitis, cocaine-induced pulmonary fibrosis, stage IV sarcoidosis, fibrotic non-specific interstitial pneumonia, radiotherapy induced pulmonary-fibrosis, interstitial pneumonia with autoimmune features and pleuroparenchymal fibroelastosis