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Fig. 6 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 6

From: Diffuse leptomeningeal glioneuronal tumor with high-grade features masquerading as tubercular meningitis—a case report

Fig. 6

Histopathological features of the leptomeningeal biopsy specimen. A Hematoxylin & eosin stain photomicrograph of the leptomeningeal biopsy specimen shows a small nodule of tumor within the tumor as shown with a circle. B Hematoxylin & eosin stain photomicrograph of the tumor region shows glial cells with eosinophilic clear cytoplasm. C Hematoxylin & eosin stain of the tumor shows mitotic figures within the glial cells as depicted with the help of the arrow. D Photomicrograph of the tumor with immunoperoxidase shows positivity for vimentin. E Photomicrograph of the tumor with immunoperoxidase shows positivity for S-100. F Photomicrograph of the tumor with immunoperoxidase shows positivity for Olig2. G Photomicrograph of the tumor with immunoperoxidase shows immunonegative response for IDH1R132H. H Photomicrograph of the tumor with immunoperoxidase shows immunonegative reaction for EMA. I Photomicrograph of the tumor with immunoperoxidase shows immunonegativity for BRAFV600E. J Photomicrograph of the tumor with immunoperoxidase shows moderate proliferation of the tumor cells (MIB-1)

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