There is a large well-defined lytic lesion present involving the body and angle of the mandible on the left. It measures approximately 19 x 38 mm. The lesion is very well defined and there is no break in the cortex identified.There is a retained molar tooth present in the lateral superior aspect of this cystic lesion. There is no soft tissue component identified.
DDx include a dentigerous cyst, keratocystic odontoid tumour or a unilocular ameloblastoma. CT is advised.