Purpose or Case Report: In this educational exhibit, we will present a series of childhood interstitial lung diseases (chILD) cases from our institution and present the x-ray and computed tomography (CT) images. We will describe a wide variety of pathologies that are encountered but are rare. We will discuss key imaging features and include teaching points of these chILDs.
Methods & Materials: Childhood interstitial lung diseases are a heterogeneous group of conditions that affect children of all ages. These pathologies can be split into two broad categories: those that are present during infancy and those which are not specific to the infancy. During infancy disorders can be further divided into those that are a result of abnormal pulmonary development, lung growth abnormalities, chronic lung disease of prematurity, structural changes associated with chromosomal abnormalities and disorders related to surfactant deficiency. In the older population disorders are divided into those seen related to systemic disease processes, those of the immunocompromised host and those that mimic interstitial lung disease including but not limited to infections and inhalation injuries. We will also discuss the latest techniques to optimize the imaging ILD in the pediatric population and discuss pitfalls in imaging acquisition.
Results: We will use a case based approach to discuss pathologies from the following categories divided by those seen infancy versus those that are not specific to infancy. Pathologies include the following:

Alveolar capillary dysplasia
Pulmonary hypoplasia
Chronic lung disease of prematurity
Surfactant deficiency disorders
Trisomy 21 related interstitial lung disease
Sarcoidosis – Blau’s Disease
Noonan’s Related Lymphangectasia
Bronchiolitis Obliterans
Bronchiolitis Obliterans with organizing pneumonia (BOOP)
Adenovirus Interstitial Pneumonia
Chronic Eosinophilic Pneumonitis
Pneumocystis Pneumonia (PCP)
Chlamydia Pneumonia
Vaping Related Lung Disease
Conclusions: Childhood interstitial lung diseases, though rare, are significant cause of morbidity and mortality in both infants and children. Knowledge of the different clinical presentations and radiologic appearances of these varied pathologic conditions is of the upmost importance in order for the radiologist to provide guidance for the referring pediatric clinicians.