Diffuse Neuroendocrine Cell Hyperplasia: Report of Two Cases

Figure 2

(a) Linear and nodular proliferation of neuroendocrine cells within terminal bronchiole submucosal layer and tumorlets (HE ×2.5). (b) Tumorlet (HE ×4). (c) Carcinoid tumor (HE ×20). (d) ChrA reactivity of the same area in (a) (ChrA ×10). (e) CD56 positivity in a tumorlet (CD56 ×10). (f) Carcinoid tumor cells with strong SYNP positivity (SYNP ×10).

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