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- W3193236487 abstract "Background Neuroblastoma (NB) is one of the most common malignancies in children. Metastasis in NB is not uncommon. However, nasal metastases are rare. Here, we reported two pediatric cases of nasal metastases. Case summary Case 1 was a 3-year-old boy without a history of NB. Case 2 was a 10-year-old girl who had a history of NB for 6 years. Both of them presented with symptoms of nasal and sinus masses such as epistaxis or discharge from the nose. The radiologic imaging results revealed masses in the nasal cavity or nasopharynx in both cases and a mass in the right adrenal gland of case 1. The pathologic examination of biopsy samples of their nasal masses revealed small round blue-cell along with abundant vascular fibrous septa. The tumor cells expressed synaptophysin, cluster of differentiation 56, chromogranin A, paired like homeobox protein 2B and a very high Ki67 index in both case but were negative for vimentin, desmin, leucocyte common antigen and cytokeratin. Myelocytomatosis viral related oncogene, neuroblastoma derived (MYCN) amplification was detected in both cases. Finally, the two cases were diagnosed as nasal metastases from NB based on the clinical and pathologic findings. The two patients affected by NB were > 18 mo old, the primary tumor location was adrenal gland, and they presented with multiple metastases. Conclusion It is difficult to differentiate between metastatic NB in the nose and olfactory neuroblastoma in the absence of a history of NB. Paired like homeobox protein 2B can play an important role in the diagnosis and differential diagnosis of this disease." @default.
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- W3193236487 date "2021-08-16" @default.
- W3193236487 modified "2023-10-18" @default.
- W3193236487 title "Nasal metastases from neuroblastoma-a rare entity: Two case reports" @default.
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- W3193236487 doi "https://doi.org/10.12998/wjcc.v9.i23.6816" @default.
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