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skos:definition |
MSH: A malignant olfactory neuroblastoma arising from the olfactory epithelium of the superior nasal cavity and cribriform plate. It is uncommon (3% of nasal tumors) and rarely is associated with the production of excess hormones (e.g., SIADH, Cushing Syndrome). It has a high propensity for multiple local recurrences and bony metastases. (From Holland et al., Cancer Medicine, 3rd ed, p1245; J Laryngol Otol 1998 Jul;112(7):628-33),NCI: A malignant neoplasm of the olfactory receptor cells, composed of neuroblastic cells.,NCI: 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: An olfactory neuroblastoma arising in the paranasal sinus.
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