Panoramic zonography in evaluation of recurrent basal cell carcinoma of the face

Nine patients with recurrent, facial basal cell carcinoma were followed up both clinically and radiographically using a panoramic technique. A cylindrical image track was used for panoramic radiography. Five patients had bony destruction due to tumour re-occurrence, four patients had bony defects caused by surgery. The confirmation of the results by surgery and/or follow-up shows that the spread of basal cell carcinoma into bone can be diagnosed using a panoramic technique.