1. F 1+7/12 yrs CC: cough and mild cyanosis Diffuse pulmonary opacity

2. Diffuse ground-glass opacity, saving subpleural area

3. Diffuse interstitial widening

4. Diffuse interstitial widening due to cellular infiltration

5. Diffuse interstitial widening, even pattern, due to cellular infiltration and fibrosis

9. Diffuse interstitial widening, even pattern, due to cellular infiltration and fibrosis Also note intraalveolar macrophages and cholesterol clefts

10. Diffuse interstitial widening, even pattern, due to cellular infiltration and fibrosis Also note intraalveolar macrophages and and hyperplastic pneumocytes

11. Inflammatory cell mainly composed of lymphocytes and plasma cells

12. Inflammatory cells mainly composed of lymphocytes and plasma cells

13. Interstitial collagen lay down Cellular interstitial pneumonia - interstitial chronic inflammatory cell infiltration - type II pneumocytes hyperplasia - interstitial collagen lay down - intralaveolar macrophages Findings are suggestive of chronic pneumonitis of infancy R/O 1. collagen vascular disease 2. viral infection