A Challenging Case of an Ectopic Cushing Syndrome

Figure 4

Histology. (a) Hematoxylin-eosin staining, ×10: organoid and trabecular pattern. (b) Positive immunoreactivity to chromogranin. (c) Positive immunoreactivity to synaptophysin. (d) Positive immunoreactivity to NCAM. (e) Positive immunoreactivity to ACTH.

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