Esthesioneuroblastoma, Olfactory

**Definition:** 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)

**Tree numbers:** - C04.557.465.625.600.590.650.550.150 - C04.557.470.670.590.650.550.150 - C04.557.580.625.600.590.650.550.150 - C10.292.650.200

**Synonyms:** - Aesthesioneuroblastoma - Esthesioneuroblastoma, Paranasal Sinus-Nasal Cavity - Neuroblastoma, Olfactory - Olfactory Neuroblastoma - Paranasal Sinus-Nasal Cavity Esthesioneuroblastoma - Esthesioneuroblastoma