Fig. 2
From: Dentomaxillofacial imaging with panoramic views and cone beam CT
a PTG reveals cranial dislocation of d. 18 into the right maxillary sinus with a cystic lesion causing expansion of the sinus walls. Note the head positioning error in the PA plane; the patient has been positioned anterior to the image layer. Also the tongue (vertical arrows) is not against the palate. b Low dose MSCT axial and c coronal images show dislocated d. 18 surrounded by a large cystic lesion that causes expansion and perforation of the sinus wall. In the anterior wall of the sinus characteristic border scalloping of keratocystic odontogenic tumour (KCOT) is evident (arrow). d CBCT examination taken 5 months after the fenestration with concomitant biopsy of the lesion. The tumour was later operated