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Figure 1: Category 1: FNA cytology smears (case no. 13) showing scattered RS-like cells with prominent nucleoli (a and b; MGG, 100X), whereas on histology, excisional biopsy shows reactive lymphoid hyperplasia with prominent transformation germinal center (c; H and E, 40X) anti-BCL2 immunostain highlights invasion by BCL2-positive mantle zone cells (d; BCL2, 200X) |
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