Fig. 1

Clinicoradiologic findings of necrotizing sialometaplasia. In case 1, a bulging mass (a) in the left hard palate showing well defined high signal intentisity in T2 weighted coronal MRI (b) and peripheral enhancement and necrosis on post contrast T1-weighted coronal image (c). Case 3 showed an ulcerative mass (d) subsequently healed after 3 months (e). Case 2 also presented with a well demarcated peripheral enhancing mass in left hard palate by post contrast axial CT (f). Case 4 showed right sphenoid sinus wall defect without delineable mass in the nasal cavity or the palate (g). Two months after surgery, case 4 patient’s CT scan showed the same right sphenoid sinus wall defect (h)