Radiologic findings of olfactory neuroblastoma (Esthesioblastoma)

Olfactory neuroblastoma (ONB) also known as esthesioblastoma is a rare malignant neoplasm originating from olfactive epitelium, usually locate in the olfactory region of the nasal cavity and anterior skull base. Few cases have been published in the literature yet. Detailed radiologic and histopathological examination is necessary for diagnosis and staging ONB. Prognosis is favorable especially for locally advanced tumors; regional and distant metastasis has been accepted as indicators of poor prognosis. Surgery and radiotherapy are the main therapeutic modalities in use today. We reported the x-ray graphic, B Mod-Doppler Ultrasound (US) and Computed Tomography (CT) findings of 64 years-old male with ONB in this presentation.