Figure 4
From: Genetic variants of small airways and interstitial pulmonary disease in children
Lung (left lower lobe) biopsy at 18 months of age in the child with homozygous MUC5B:c.16861G > T, p.Glu5621*. Hematoxylin and eosin stain showing diffuse enlargement and simplification of the airspaces with thin alveolar septae (stars), mild interstitial fibrosis (long thin arrow), and intra-alveolar macrophages (short thin arrow).
