Clinical manifestations and MRI imaging features of sphenoid ridge meningiomas in the eye

Abstract

Objective To investigate the clinical manifestation, MRI imaging features and visual function prognosis of sphenoid wing meningioma in the eyes. Methods A retrospective analyzed of 11 patients with sphenoid wing meningioma diagnosed by surgery, the clinical manifestations, the shape and size of lesions in MRI, the relationship with adjacent tissues, as well as postoperative vision, eyeballs and vision recovery. Results Eleven cases of sphenoid wing meningioma patients, the clinical manifestations of ipsilateral visual acuity decreased in 9 cases, 7 cases of eye protrusion, visual field defect in 6 cases. MRI showed 7 cases of orbital cranial tumor, 4 cases of intracranial tumors, the largest diameter of the tumor 2.3cm-8.2cm. T1WI showed moderate and low signal, T2WI showed moderate and high signal, all tumors were evenly enhanced. Tumor and peripheral brain tissue boundary in 9 cases, border blur in 2 cases. Invasion of the optic nerve caused by optic nerve density, location changes in 7 cases. Surgical approach, including the cranial orbital zygomatic approach and pterional approach, as far as possible during the removal of tumor, postoperative follow-up, visual impairment in postoperative visual acuity improved in 2 cases; in the patients with prominent eyes,3 cases returned to normal after operation,and 4 cases had decreased eyes prominence; 3 cases of postoperative vision improved. Conclusions Sphenoid wing meningioma can occur in all age groups, eye symptoms to vision loss, eyeballs, visual field defects, MRI imaging of T1WI mostly moderate and low signal, T2WI is medium and high signal. The tumor density is more consistent. Postoperative visual acuity depends on the preoperative residual vision, the better the prognosis of vision, the better eyeballs and visual field defects, the better prognosis. Key words: Sphenoid ridge meningiomas; MRI; Clinical Features; Visual function prognosis