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Olfactory Neuroblastoma
Definition 1
A rare neuroectodermal tumor originating from olfactory receptor cells in the nasal cavity or paranasal sinuses. Microscopically, it is characterized by neuroblastic differentiation with occasional formation of rosettes. If the tumor is not resected at an early stage, the prognosis is usually poor. (NCI Thesaurus)
Definition 2
A malignant neoplasm of the olfactory receptor cells, composed of neuroblastic cells. (NCI Thesaurus/CDISC)
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