I125 brachytherapy guided by individual three-dimensional printed plates for recurrent ameloblastoma of the skull base

Ameloblastoma is one of the most common benign odontogenic tumours of the mandible and the maxilla. Wide excision of the tumour is the first choice for treatment (except for unicystic ones). Patients with invaded margins or unresectable lesions may require radiotherapy. Today, permanent implantation of I125 seeds is widely used in the treatment of cancer of the head and neck. We report a case of recurrent ameloblastoma of the base of the skull that was treated with I125 brachytherapy. The outcome has been encouraging, with total disappearance of the tumour on positron emission tomography 18 months later.

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