case_images: PMC10858775_01
case_images: (a) Clinical photograph of patient lateral view and (b) front view.
case_images: SNI-15-1-g001.jpg
case_images: PMC10858775_01_SNI-15-1-g001.jpg
case_images: F1
case_images: On examination, a bony, hard, nonpulsatile, immobile, non-tender swelling, 8 x 10 x 15 cm in size, was present over the midline, bifrontal region [Figure 1].
case_images: (a and b) Three-dimensional computed tomography (CT) scan reconstruction showing frontal bone hump. (c and d) Bone window of coronal and sagittal CT scan.
case_images: SNI-15-1-g002.jpg
case_images: PMC10858775_01_SNI-15-1-g002.jpg
case_images: F2
case_images: Computed tomography (CT) of the head showed an expansile osseous lesion involving the bifrontal bones with linear trabecular striations [Figure 2].
case_images: (a) Magnetic resonance imaging T2 sagittal and (b) T1 contrast sagittal.
case_images: SNI-15-1-g003.jpg
case_images: PMC10858775_01_SNI-15-1-g003.jpg
case_images: F3
case_images: Magnetic resonance imaging (MRI) of the brain revealed a swelling in the frontal region that was seen involving both the inner and outer table of the frontal bone, causing the widening of the diploic spaces [Figure 3].
case_images: (a) Intraoperative image after skin flap elevation, (b) after resection and placement of mesh over the craniectomy defect.
case_images: SNI-15-1-g004.jpg
case_images: PMC10858775_01_SNI-15-1-g004.jpg
case_images: F4
case_images: The tumor was resected by bifrontal craniotomy [Figure 4a]. Following this, cranioplasty was done using titanium mesh (Johnson and Johnson, India), fixed with miniplate and screw [Figure 4b].
case_images: (a and b) Fibro-osseous lesion with irregular curvilinear woven bone without conspicuous osteoblastic rimming, intervening fibrous tissue is composed of bland fibroblastic spindle cells (H&E).
case_images: SNI-15-1-g005.jpg
case_images: PMC10858775_01_SNI-15-1-g005.jpg
case_images: F5
case_images: Histopathology revealed a fibro-osseous lesion with irregular curvilinear woven bone without conspicuous osteoblastic rimming, intervening fibrous tissue composed of bland fibroblastic spindle cells [Figure 5].
case_images: Clinical photograph of the patient at 12-month follow-up.
case_images: SNI-15-1-g006.jpg
case_images: PMC10858775_01_SNI-15-1-g006.jpg
case_images: F6
case_images: He is doing well at a 12-month follow-up that shows an excellent cosmetic result [Figure 6] without any recurrence of symptoms.