Neuroblastoma Soft Tissue Metastasis in a 10-Month-Old Infant with a Right Thigh Mass

Figure 2

Hematoxylin and eosin (H&E) staining showing round cells with scanty cytoplasm arranged in solid nests with pseudo rosette formation (a). In IHC staining, neoplastic cells demonstrate positive immunoreactivity for NSE (b), CD56 (c), and vimentin (d) and negative immunoreactivity for synaptophysin (e) and cytokeratin AE1/AE3 (f).

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(b)

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(f)