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Washington University Experience | NEOPLASM (SELLAR) | Pituitary Adenoma - Pituitary Neuroendocrine Neoplasm | Corticotroph | 3B PR CH (Case 3) ACTH 3

Immunohistochemical studies show tumor cells to be diffusely weakly positive for ACTH which is displaced by the intracellular Crooke’s change.

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