case_images: PMC10927173_01
case_images: Coronal computed tomography scan and 3D reconstruction of the paranasal sinuses showing an expansile hyperdense lesion with a sclerosed peripheral mantle epicentered on the left sphenoid sinus and extending into the left nasal cavity.
case_images: SNI-15-38-g002.jpg
case_images: PMC10927173_01_SNI-15-38-g002.jpg
case_images: F2
case_images: Computed tomography (CT), in Figure 2, showed an expansile hyperdense lesion with a sclerosed peripheral mantle epicentered on the left sphenoid sinus and extending into the left nasal cavity.
case_images: Magnetic resonance imaging-T1-weighted image of paranasal sinuses and the brain (axial cuts) showing a well-defined hyperintense lesion filling the left ethmoid, sphenoid sinuses, and the left nasal cavity.
case_images: SNI-15-38-g003.jpg
case_images: PMC10927173_01_SNI-15-38-g003.jpg
case_images: F3
case_images: Magnetic resonance imaging (MRI)-T1-weighted image (T1WI), in Figure 3, showed a well-defined hyperintense lesion filling the left ethmoid, sphenoid sinuses, and the left nasal cavity.
case_images: Microscopic picture (Hematoxylin and Eosin) staining shows features of juvenile trabecular ossifying fibroma with proliferation of stromal spindle fibroblasts, presence with woven and lamellar bone deposits composed of scattered osteoblasts and osteocytes.
case_images: SNI-15-38-g004.jpg
case_images: PMC10927173_01_SNI-15-38-g004.jpg
case_images: F4
case_images: Histopathological examination revealed the proliferation of stromal spindle fibroblasts presence with woven and lamellar bone deposits composed of scattered osteoblasts and osteocytes [Figure 4].
case_images: Postoperative computed tomography image shows a small residual tumor in the left compartment of sphenoid sinus and the left medial orbital wall and postoperative changes in the maxillary sinus.
case_images: SNI-15-38-g005.jpg
case_images: PMC10927173_01_SNI-15-38-g005.jpg
case_images: F5
case_images: A follow-up CT was done on an outpatient basis five months after surgery [Figure 5].