PMC8769427_01
Preoperative images. (A and B) Enhanced improved motion-sensitized driven-equilibrium (iMSDE) MRI showing a high-intensity sinonasal tumor compressing the left eye (A) and expanding into the left frontal lobe as a cyst (B). (C) T2-weighted fluid-attenuated inversion recovery MRI showing the cystic tumor with perifocal edema in the left frontal lobe. (D) Vaso-CT showing feeders from the ethmoidal artery and sphenopalatine artery.
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F1
MRI showed a cystic tumor in her frontal lobe with perifocal edema, with a maximum diameter of 55 mm. MRI also showed a solid mass in her nasal cavity compressing her left eye (Figs. 1A-C). Prior to surgery, angiography (Fig. 1D) and vascular embolization were performed to control hemorrhage.