[Table/Fig-2]:

Diseases associated with follicular bronchiolitis

Connective tissue disease

Sjögren’s syndrome [13,14] Rheumatoid arthritis [15,16] Systemic lupus erythematosis [17,18]

Other immunological disorders

Evans Syndrome (Autoimmune haemolytic anaemia and immune thrombocytopenia) [19,20] Pernicious anaemia [21]

Immunodeficiency

AIDS, particularly in children [22] Common variable immunodeficiency (CVID) [23,24]

Infections

Pneumocystis Jirovicci pneumonia [25] Legionella pneumonia [26] Active hepatitis [27]

Interstitial lung diseases [24, 28–30]

LIP Respiratory bronchiolitis-ILD (RB-ILD) Desquamative interstitial pneumonia (DIP) Hypersensitivity pneumonitis (HP) Cryptogenic organizing pneumonia (COP) Granulomatous lymphocytic-ILD (GLILD)

Airway inflammatory diseases [10,11]

Bronchiectasis Asthma COPD

Familial [31,32]

Idiopathic (primary)