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MICROSCOPIC DESCRIPTION:
On H&E, the tumor showed epitheloid neoplastic cells arranged in cords and lobules and lying in abundant myxiod matrix (Figures 7, 8 and 9). Many of the neoplastic cells exhibited vacuolated cytoplasm and central, vesicular nuclei while others had a more signet ring type morphology (Figures 10 and 11)
IMMUNOHISTOCHEMISTRY:
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The neoplastic cells were strongly positive for AE1/3 (Figure 12) and appreciably, although not as strongly positive for S100 (Figure 13)
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