case_images: PMC11799680_01
case_images: Extranasal mass over the nasion protruding more toward the left side. It was measuring 1.5 by 2 cm, firm in consistency, and had a small purplish hue on its surface but no telangiectatic vessels.
case_images: SNI-16-1-g001.jpg
case_images: PMC11799680_01_SNI-16-1-g001.jpg
case_images: F1
case_images: It was measuring 1.5 by 2 cm, firm in consistency, and had a small purplish hue on its surface but no telangiectatic vessels [Figure 1].
case_images: Magnetic resonance imaging showing extranasal lesion. (a) T2 axial and saggital images showing lesion isointense signal. (b) T1 axial and saggital images showing lesion isointense signal.
case_images: SNI-16-1-g002.jpg
case_images: PMC11799680_01_SNI-16-1-g002.jpg
case_images: F2
case_images: Magnetic resonance imaging (MRI) showed an extranasal lesion with signal intensity similar to brain tissue in T1-weighted images, while T2-weighted images revealed no fibrous stalk or intracranial communication [Figure 2].
case_images: (a and b) Microscopic examination of hematoxylin and eosin (H&E x20) stain sections revealing fragments of alternating dense collagenous tissue and disorganized fibrillary glial tissue and mature astrocytes. (c) Immunohistochemistry (x20) study showing positive glial fibrillary acidic protein in the glial components of the lesion.
case_images: SNI-16-1-g003.jpg
case_images: PMC11799680_01_SNI-16-1-g003.jpg
case_images: F3
case_images: Microscopic examination revealed alternating dense collagenous tissue, disorganized fibrillary glial tissue, and mature astrocytes [Figures 3a and b]. Immunohistochemistry was positive for glial fibrillary acidic protein in the glial tissue and showed weak patchy staining for P53 [Figure 3c].
case_images: Postoperative picture taken at 3 years of age.
case_images: SNI-16-1-g004.jpg
case_images: PMC11799680_01_SNI-16-1-g004.jpg
case_images: F4
case_images: On 3 3-year follow-up, the wound had healed completely with an adequate nasal contour [Figure 4] and a slightly hypertrophic scar.
case_images: Postoperative magnetic resonance imaging showing no evidence of recurrunce at 3 years of age with mildy hypertropic scar. (a) T1 axial and saggital images. (b) T2 axial and saggital images.
case_images: SNI-16-1-g005.jpg
case_images: PMC11799680_01_SNI-16-1-g005.jpg
case_images: F5
case_images: There was no recurrence reported on follow-up MRI [Figure 5].