Pulmonary Neuroendocrine Cell Hyperplasia Associated with Surfactant Protein C Gene Mutation

Figure 4

(a) H&E stain 2x showed chronic interstitial pneumonia with alveolar septal thickening and fibrosis, pattern most suggestive of NSIP. (b) Synaptophysin stain 4x showed a carcinoid tumorlet. (c) Synaptophysin stain 40x showed PNEC hyperplasia.

(a)

(b)

(c)