Table 2 Various etiological diagnoses of studied cases with pediatric chronic lung disease

Inhalation lung disease:

Hypersensitivity pneumonitis,

Toxin inhalation

Chronic recurrent inflammatory:

Recurrent viral/bacterial/fungal infection,

Granulomatous disease,

Aspiration

Autoimmune disease

Chronic airway disease:

Suppurative lung syndrome,

Asthma

ILD:

NEHI,

Pulmonary hemorrhage,

NSIP,

UIP,

Langerhans cell histiocytosis and edema

Hereditary malformations:

Congenital lobar emphysema,

CF,

Ciliary dyskinesia

Chronic vascular disease with recurrent infarction