A Rare Case of ALK-Positive Large B-Cell Lymphoma with CD33 Expression

Figure 3

Additional immunohistochemical stains of tumor cells. The tumor cells also express CD138 (a), CD33 (b), and ALK (c). Higher magnification (100x, oil) of ALK in panel (d) demonstrates a cytoplasmic granular pattern highly suggestive of CLTC-ALK fusion protein expression. Images (a), (b), and (c) are all at 20x magnification.

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