Abstract:
:Patients with retinoblastoma have an increased risk of developing second primary tumors. Only a few examples of sinonasal small cell neoplasms developing after radiation therapy for retinoblastoma have been reported. We report one such case that developed 18 years after treatment for retinoblastoma. Histologic examination revealed a small, blue, round cell tumor without rosettes or cytoplasmic glycogen. Immunohistochemically, the tumor cells were positive for neuron-specific enolase, synaptophysin, and S-100 protein, but negative for epithelial and mesenchymal markers, suggesting that this was a primitive neuroectodermal tumor. Cytogenetic studies of this tumor failed to reveal the chromosome 13 abnormality typical of retinoblastoma and the t(11:22) translocation typical of the group of peripheral neuroepitheliomas.
journal_name
Hum Patholjournal_title
Human pathologyauthors
Saw D,Chan JK,Jagirdar J,Greco MA,Lee Mdoi
10.1016/0046-8177(92)90401-nsubject
Has Abstractpub_date
1992-08-01 00:00:00pages
896-9issue
8eissn
0046-8177issn
1532-8392pii
0046-8177(92)90401-Njournal_volume
23pub_type
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