Diffuse lung disease with constrictive bronchiolitis (obliterative bronchiolitis)

• Healed infections (esp. adenovirus)
• Healed fume or toxin exposures (inhaled or ingested)
• Connective tissue diseases (esp. RA)
• Transplant-associated (bone marrow, lung, heart-lung)
• Drug reactions (ex. penicillamine, lomustine)
• Inflammatory bowel disease-associated
• Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia
• Complication of asthma
• Extrinsic allergic alveolitis
• Idiopathic (cryptogenic obliterative bronchiolitis)

References:

• Travis et al. Non-Neoplastic Disorders of the Lower Respiratory Tract (2002)