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Washington University Experience | NEOPLASM (SELLAR) | Pituitary Adenoma - Pituitary Neuroendocrine Neoplasm | Corticotroph | 12B2 PA, CR in NL (Case 12) ACTH 3B

ACTH immunolocalized to the non-neoplastic cells in the non-neoplastic acini and tumor cells. The cells shown have displaced neurosecretory granules as the result of Crooke’s change. (ACTH IHC)

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