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case_images: Preoperative coronal computed tomography images showing characteristic expansile changes in the paranasal sinuses with extensive bone remodeling and erosion of the bone of the lamina papyracea, fovea ethmoidalis, and lateral wall of the sphenoid sinus.
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case_images: Endoscopy revealed bilateral nasal polyps, and nonenhanced CT revealed extensive sinonasal polyposis with expansion of the sphenoid and ethmoid sinuses with bone thinning (Figure 1). Further, nonenhanced CT revealed enlarged and inflamed ethmoid and sphenoid sinuses compressing the optic nerve, mainly in the region of the optic canal (Figure 1).
case_images: Coronal computed tomography images after right-sided endoscopic sinus surgery.
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case_images: Postoperatively, a nonenhanced CT scan was done (Figure 2).
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case_images: (A), Coronal computed tomography image. (B) Coronal gadolinium-enhanced magnetic resonance image.
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case_images: A nonenhanced CT (Figure 3A) revealed an expansile heterogeneous sphenoid opacity with bowing of the lateral wall of the sphenoid sinus.
case_images: Postoperative coronal computed tomography image showing expansion of sphenoid sinus with destruction in the superior wall extending into the optic canal.
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case_images: Postoperative nonenhanced CT was performed (Figure 4).
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case_images: Preoperative nonenhanced coronal computed tomography images showing extensive remolding of the bony walls of the sphenoid sinus along with the lamina papyracea and the roof of the ethmoid sinus.
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case_images: The nonenhanced CT of the paranasal sinuses (Figures 5 and 6) revealed multiple areas of bony remodeling, thinning, and dehiscence along the sinonasal bony wall, including the posterior table of the frontal sinus and the roof and lateral wall of the ethmoid sinus.
case_images: Axial computed tomography images.
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case_images: The nonenhanced CT of the paranasal sinuses (Figures 5 and 6) revealed multiple areas of bony remodeling, thinning, and dehiscence along the sinonasal bony wall, including the posterior table of the frontal sinus and the roof and lateral wall of the ethmoid sinus.