Clinical and Radiographic Findings

The panoramic radiograph demonstrates a well-defined and corticated unilocular radiolucent lesion occupying a significant portion of the left mandibular angle and extending superiorly into the ramus (Figure 1).   Additional radiographic images show that this lesion is not significantly expansile but appears to be breaking through the lingual bone.  The radiolucent lesion is surrounded by reactive bone formation manifested in more sclerotic and radiopaque bone. 

Figure 1 Panoramic view at first presentation demonstrating large unilocular radiolucency with corticated border involving angle of the mandible and part of the ramus.