Secretory meningiomas, on the other hand, display a unique immunophenotype, expressing cytokeratins and carcinoembryonic antigen (CEA) within eosinophilic inclusions, whereas metaplastic or lipomatous variants retain meningothelial markers but may histologically mimic sarcomas [16,17]. This evidence concerns the gene CEACAM5 and Secretory Meningioma.