(a) The H&E stained section shows a sheet of large cells with abundant cytoplasm and moderate nuclear pleomorphism. (b): The cells do not stain for cytokeratin (c): The cells express CD30 (d): The cells express ALK-1
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(a) The H&E stained section shows a sheet of large cells with abundant cytoplasm and moderate nuclear pleomorphism. (b): The cells do not stain for cytokeratin (c): The cells express CD30 (d): The cells express ALK-1
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