抄録
We report the case of a patient with an olfactory neuroblastoma which occupied the sphenoid sinus with nasal and suprasellar extension. Presenting symptoms included diminished visual acuity in the right eye. Computed tomography (CT) and magnetic resonance (MR) imaging demonstrated a tumor that had destroyed most of the sphenoid sinus, extending to the nasal cavity and suprasellar region. The patient underwent surgery via a fronto-temporal approach. An extensive review of the literature revealed approximately 300 cases of olfactory neuroblastoma, however, only two of these cases involved the sphenoidal region. This tumor is not thought to be derived from the olfactory neuroepithelium, but rather from neural crest tissue surrounding the sphenoid sinus.