This is a 14-year-old Japanese male who presented with a large radiolucency associated with tooth #32 (Figure 1). The lesion was 3-4 cm in size and was asymptomatic. It was of unknown duration and was not expansile. The radiograph revealed a large radiolucency with a scalloped border squeezing between the roots of teeth #s 30 & 31 (Figure 1). In very close proximity to this radiolucency lay the crown of tooth #32 with a well-defined dental follicle. The mesial aspect of this follicle appeared to be connected to the large radiolucency in the panoramic view but a line of separation was present in the CT scan (Figure 1).
Figure 1 Panoramic view at first presentation demonstrates a large radiolucency with a scalloped border squeezing between teeth #s 30 & 31. Note the coronal section demonstrating a fine line of separation between the large scalloped radiolucency and the dental follicle of tooth #32.