Imaging approach for jaw and maxillofacial bone tumors with updates from the 2022 World Health Organization classification

Figure 22  Fibrous dysplasia. A 62-year-old man was found to have an incidental lesion in the left maxillary sinus wall on magnetic resonance imaging conducted to evaluate sensorineural hearing loss. A and B: Axial (A) and coronal (B) computed tomography images demonstrate an expansile, ground-glass density lesion involving the left maxilla (arrows) which is characteristic of fibrous dysplasia; C and D: Axial T2-weighted (C) and contrast-enhanced fat-suppressed T1-weighted (D) magnetic resonance images show mixed T2 signal intensity and heterogeneous enhancement (dashed arrows). The lesion has remained stable over 7 years of follow-up magnetic resonance imaging.