The central Onodi cell: A previously unreported anatomic variation
نویسندگان
چکیده
Preoperative recognition of the Onodi cell is necessary to avoid injury to closely associated structures, including the internal carotid artery and the optic nerve. This article describes the central Onodi cell, a variation in which a posterior ethmoid cell lies superior to the sphenoid sinus in a midline position with at least one optic canal bulge. To our knowledge, this anatomic variation has not been previously reported in the literature. Radiographic and endoscopic imaging of this unique variation is provided.
منابع مشابه
The role of Onodi cells in sphenoiditis: results of multiplanar reconstruction of computed tomography scanning.
INTRODUCTION Onodi cells are the most posterior ethmoid air cells and extend superolateral to the sphenoid sinus. These cells are also intimately related with the sphenoid sinus, optic nerve, and carotid artery. Radiologic evaluation is mandatory to assess for anatomic variations before any treatment modalities related to the sphenoid sinus. OBJECTIVE To evaluate the effect of Onodi cells on ...
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