PMC5556594_01
CT image showing hetero-dense lesions in both right and left parietal areas
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F1
Computed tomography (CT) revealed well defined hetero-dense masses measuring 5x4 cm and 2x2 cm in the right and the left parietal region respectively with surrounding edema and mass effect (Figure 1 (Fig. 1)).
Figure 2(a): Section showing tumor with large areas of necrosis (H&E 40X); (b): Large polygonal cells with abundant eosinophilic cytoplasm, eccentric nuclei, prominent nucleoli and brisk mitoses (H&E 400X)
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F2
Areas of high mitotic activity and necrosis were also noted (Figure 2 (Fig. 2)).
Immunohistochemistry showing positivity for (a): EMA, (b): D2-40, (c): Ki67
GMS-15-12-g-003.jpg
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F3
The high mitotic activity was highlighted by Ki67 positivity demonstrating a mean labeling index of 15% (Figure 3 (Fig. 3)).