Limitations of rotational panoramic radiographs in the diagnosis of maxillary lesions. Case report.

This case report clearly demonstrates that misdiagnosis may result from failure to recognize the limitations dictated by the width of the focal trough in rotational panoramic radiographs. The patient's clinical signs and symptoms were at variance with the findings from the rotational panoramic radiograph. A subsequent radiographic view by the occipito-mental (Water's) projection showed the extent and malignant features of the lesion.