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Fig. 1 | Insights into Imaging

Fig. 1

From: Masses of developmental and genetic origin affecting the paediatric craniofacial skeleton

Fig. 1

Fibrous dysplasia (FD) of the maxilla in a 12-year-old boy with rapidly increasing facial asymmetry. a Axial computed tomography (CT) scan (bone window) shows expansile lesion of the left zygomatic arch with ground-glass opacity (arrow). b Three-dimensional CT volume rendering (VR) reconstruction depicts zygomatic bone remodelling involving the floor and lateral wall of the orbit and the zygomatic arch (arrows). Partial surgery was performed six years later for cosmetic reasons. c Low-power photomicrograph obtained after partial lesion resection reveals irregular, curvilinear trabeculae of woven and lamellar bone surrounding fibrous tissue with bland-appearing fibroblastic cells (original magnification, ×100; haematoxylin and eosin [H&E] stain). At higher power, (inset in c), the bone trabeculae are devoid of osteoblastic rimming (original magnification, ×200)

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