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Washington University Experience | NEOPLASMS (MENINGIOMA) | Transitional | 14B1 Meningioma (Case 14) PR 3

14B1-4 Immunostaining for progesterone receptor (PR) shows nuclear positivity. ---- Not shown: Ki-67 shows a labeling index of 3.1% in the "right frontal tumor" (A) (based on 516 total counted cells) and 5.2% in the "right sphenoidal wing" (C) (based on 1147 total counted cells).

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