PMC7242870_01
Swelling involves the left cheek and the lower jaw with intact overlying skin.
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On examination, there was a slightly tender firm left-sided swelling involving the cheek, not crossing the lower border of the mandible with intact overlying skin (Fig. 1).
Intra oral swelling and expansion of the involved tissue with fair oral hygiene and intact mucosa. Evidence of mucosal scar from a previous intervention over the external oblique buccal ridge.
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Intra-orally, the swelling involved the ipsilateral buccal region and extended medially to the posterior lower alveolus, retromolar trigone and the ascending ramus of the mandible, with erythematous overlying mucosa (Fig. 2).
CT scan imaging. A) 3D reconstruction demonstrates the cortical osteolytic changes of the ramus. B) Coronal section shows the bicortical bone changes of the left ramus and the surrounding heterogeneous lesion of the related musculature. C) The extent of the lesion in axial view.
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Computed tomography (CT) scan, revealed an expansile lesion involving the left masticatory region, extending from the condylar process to the angle of the mandible, with bicortical erosion, and osteoblastic activity (Fig. 3).