Nasal metastases from neuroblastoma-a rare entity: Two case reports

Figure 3 Pathological findings in case 2. A: The poorly differentiated tumor also showed a cluster appearance in case 2 (hematoxylin and eosin stain, × 200 magnification); B: The tumor cells were round or oval and the nucleoli were not obvious in case 2 (hematoxylin and eosin stain, × 400 magnification); C: The tumor cells were positive for synaptophysin (× 200 magnification); D: The tumor cells showed myelocytomatosis viral related oncogene, neuroblastoma derived amplification, which is indicated by more myelocytomatosis viral related oncogene, neuroblastoma derived signals (green) [more than 8 copies of the centrosomal probe signals (red)].