• Shailendra Das, Claire Langston, and Leland L Fan.
• Pediatric Pulmonary Section, Department of Pediatrics, USA.
• Curr. Opin. Pediatr. 2011 Jun 1;23(3):325-31.

Purpose Of ReviewIn this review, we discuss the recent advances in our understanding of the cause, pathogenesis, presentation, diagnosis, treatment, and prognosis of interstitial lung disease (ILD) in children.Recent FindingsThe classification of ILD syndromes in children greater than 2 years of age is based largely on adult classification schemes. In children less than 2 years of age, classification has been developed and evaluated pathologically. Entities can be categorized into developmental disorders, growth abnormalities, and surfactant dysfunction disorders based on pathologic findings. Two distinctive entities, neuroendocrine cell hyperplasia of infancy and pulmonary interstitial glycogenosis, present early in life with characteristic findings. These two disorders appear to have a favorable prognosis. Diagnosis of ILD syndromes is based on the summation of history and physical findings and both noninvasive and invasive studies. Newer approaches are being evaluated to decrease the need for lung biopsy.SummaryChildren's interstitial lung diseases are rare diffuse lung diseases resulting from a variety of pathogenic processes that include genetic factors, association with systemic disease processes, and inflammatory or fibrotic responses to stimuli. There are unique causes and presentations seen in infancy. Diagnosis in these disorders is made by the summation of clinical, radiologic, and pathologic findings.

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