This lesion was discovered on the initial orthodontic panoramic radiograph. There was a normal range of mandibular motion with no evidence of bony expansion. The oro-pharyngeal examination was unremarkable and oral mucosa was healthy. The panoramic (Fig 1) and periapical (not shown) radiographs demonstrate a large radiopaque mass associated with an impacted third molar (tooth #32). There was no evidence of cortical expansion or pain.
Figure 1. This is a panoramic view of the primary tumor taken at the initial presentation for orthodontic treatment. Note the impacted tooth #32 with a large radiopaque mass associated with the crown of the tooth.