Ophthalmic Plast Reconstr Surg 2021 Mar 24. Epub 2021 Mar 24.
Orbital Plastic and Lacrimal Clinic, Royal Victorian Eye and Ear Hospital Centre for Eye Research Australia, University of Melbourne Department of Radiology, St Vincent's Hospital, Melbourne, Victoria, Australia Department of Surgery, Royal Melbourne Hospital, University of Melbourne, Parkville, Victoria, Australia.
Purpose: To review the imaging features of the broad range of nonmeningioma lesions of the greater wing of the sphenoid (GWS) bone and adjacent orbit to assist clinicians in differentiating these lesions from each other and from the most common lesion of the GWS and adjacent orbit, meningioma.
Methods: We reviewed 32 cases of spheno-orbital lesions involving the GWS from our own practice, as well as 109 published cases (total 141), with emphasis on available imaging features on computerized tomography (CT) and MRI. Features that might assist in differentiating meningioma from its mimics were analyzed for each lesion, including the presence of an osteoblastic or hyperostotic response, bone erosion or osteolysis, homogeneous hypo- or hyperintensity on T2-weighted MRI, leptomeningeal involvement, and the absence of a "dural tail" on contrast-enhanced MRI. Read More