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Case 3. (A) Extraoral view showing facial asymmetry with swelling of the left maxilla. (B) Intraoral view showing the edentulous maxilla with firm vestibular and palatal expansion. (C) Coronal CBCT reconstructions showing bilateral maxillary lesions with mixed radiodensity and expansion, infiltrating both maxillary sinuses. (D) Histology (×400) showing numerous multinucleated giant cells dispersed within a spindle-cell stroma with abundant capillaries.
