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Panoramic radiograph revealing severe bone resorption of the left mandibular body and ramus.
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A panoramic radiograph revealed wide-ranging dissolution of the left mandible, while no periosteal reaction or reactive new bone formation were observed around the residual bone tissues (Fig. 1).
CT images of the maxillofacial region. (A) Coronal CT scan. Arrow shows that the left mandible bone has become thin, with incomplete sclerosis of the medullary cavity. (B) Axial CT scan. Arrow shows an irregular, thick-walled cystic mass in the left ramus of the mandible. (C) Coronal MRI scan. Arrow shows an irregular, thick-walled cystic mass in the left ramus of the mandible. (D) Histopathological examination of a bone biopsy. H&E x100.
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The teeth appeared to float in the osteolytic tissues (Fig. 2A). CT and MRI images showed a 38x43x75-mm, irregular, thick-walled cystic mass in the left ramus of the mandible (Fig. 2B and C). Histopathological examination of the bone biopsy showed proliferation of the fibrous connective tissue, intermixed with irregular bony trabeculae (Fig. 2D).
Three-dimensional reconstruction CT images of the maxillofacial region. Upper panel, front-view; Lower panel, lateral-view.
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Three-dimensional reconstruction CT images indicated that the left temporomandibular joint remained uninvolved (Fig. 3).