Figure 3. Immunohistochemical stains: G. Epithelial membrane antigen (EMA) shows positive membranous and cytoplasmic staining of tumor cells (10x magnification). H. Glial fibrillary acidic protein (GFAP) highlights invaded brain parenchyma by meningioma (10x magnification). Progesterone receptor (PR) is negative in the tumor cells (10x magnification). J. Ki-67 proliferation index is up to 15% (10x magnification)

From

Invasive Recurrent Meningioma with Extracranial Tissue Involvement: A Case Report

Neeraj Salhotra, Sheikhan Al Hashmi, Aml Eid Mohammad Saleh, Mahmood Marhoon Al Hatalli, Simin Laiq, Zahra Al Hajri, Kauther Al Zakwani

American Journal of Medical Case Reports. 2020, 8(12), 467-470 doi:10.12691/ajmcr-8-12-9