case_images: PMC5846460_01
case_images: CECT nose and PNS (coronal and axial cut) showing heterogeneously enhancing mass in the right nasal cavity, likely centered in the middle turbinate with extension into the right ethmoid sinus superiorly, floor of nasal cavity inferiorly, choana and sphenoid sinus posteriorly with the erosion of the adjacent bone, and destruction of the nasal septum with extension of the mass to the contralateral side.
case_images: CRIOT2018-7541892.001.jpg
case_images: PMC5846460_01_CRIOT2018-7541892.001.jpg
case_images: fig1
case_images: CECT (contrast-enhanced computed tomography) of the nose and paranasal sinuses (Figure 1) showed heterogeneously enhancing mass in the right nasal cavity, likely centered in middle turbinate with extension into the right ethmoid sinus superiorly and choana and sphenoid sinus posteriorly with erosion of the adjacent bone.
case_images: Histopathological examination suggestive of a WHO grade II atypical transitional meningioma (H&E stain).
case_images: CRIOT2018-7541892.002.jpg
case_images: PMC5846460_01_CRIOT2018-7541892.002.jpg
case_images: fig2
case_images: Histopathological examination (Figure 2) revealed unencapsulated tumor composed of tumor cells arranged in lobules, nests, and sheets with focal whorling pattern in subepithelium.
case_images: Meningioma after endoscopic excision.
case_images: CRIOT2018-7541892.003.jpg
case_images: PMC5846460_01_CRIOT2018-7541892.003.jpg
case_images: fig3
case_images: Preoperatively, there was a pinkish, vascular, and friable mass occupying the right nasal cavity, extending anteriorly up to the anterior end of the right middle turbinate and posteriorly occupying the choana along with extension towards the left side (Figure 3).