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Washington University Experience | NEOPLASMS (MENINGIOMA) | Secretory | 14D Meningioma, secretory (Case 14) PR.jpg
Tumor cells have strong widespread nuclear positivity for progesterone receptor. (PR IHC) ---- Ancillary studies (not shown): Polyclonal carcinoembryonic antigen (CEA) labels tumor and pseudopsammoma bodies. The proliferation marker Ki67 stains a low subset of tumor cell nuclei at variable density, ranging focally up to 2.3%. ---- Comment: The overall characteristics are those of a secretory meningioma, WHO Grade 1.
