Eosinophilic granulomatosis with polyangiitis (Churg-Strauss syndrome) (5) Extrinsic allergic alveolitis (7) Granulomatosis with polyangiitis (9) Idiopathic pulmonary fibrosis (8) Kartagener's syndrome (2) Microscopic polyangiitis (3) Sarcoidosis (13) Silicosis (4)