case_images: PMC10830065_01
case_images: Sagittal MRI of sinonasal mass in ethmoids and extending intracranially, indicated with red asterisk (A-D).
case_images: cureus-0016-00000053185-i01.jpg
case_images: PMC10830065_01_cureus-0016-00000053185-i01.jpg
case_images: FIG1
case_images: An outpatient MRI brain showed a nasal mass within the ethmoids with intracranial extension (Figures 1A-1D).
case_images: Axial CT sinus landmark without IV contrast from superior to inferior view (A-D). The sinonasal mass is marked with a red asterisk. Yellow shading and outlines indicate orbital and ethmoid sinus invasion of the tumor.
case_images: cureus-0016-00000053185-i02.jpg
case_images: PMC10830065_01_cureus-0016-00000053185-i02.jpg
case_images: FIG2
case_images: A CT sinus landmark without IV contrast was obtained to properly evaluate the bony anatomy surrounding the nasal mass and determine the course of surgical management (Figures 2A-2D).
case_images: Repeat MRI status post-craniotomy resection of mass. . A: axial MRI showing the extra-orbital area of resection of sinonasal mass, indicated by the red asterisk; B: axial MRI showing varying areas of vasogenic edema status post craniotomy, indicated by the red asterisk; C-D: sagittal MRI showing hyperattenuating areas of vasogenic edema consistent with normal changes after complete tumor resection, indicated by the red asterisk.
case_images: cureus-0016-00000053185-i03.jpg
case_images: PMC10830065_01_cureus-0016-00000053185-i03.jpg
case_images: FIG3
case_images: Repeat MRI revealed complete resection of intracranial extension and likely acute/subacute infarct in the medial left occipital lobe (Figures 3A-3D).