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Figure 3: Immunohistochemistry: Tumor cells demonstrating positivity for neuron-specific enolase (a), synaptophysin (b), chromogranin (c), and cytokeratin 7 (d) (immunostain × 200)

Figure 3: Immunohistochemistry: Tumor cells demonstrating positivity for neuron-specific enolase (a), synaptophysin (b), chromogranin (c), and cytokeratin 7 (d) (immunostain × 200)