Metastasis of Thyroid Carcinoma to the Mandible

Metastatic tumors of oral cavity are very rare, accounting for 1% of neoplasm in the area and their primary origin can be anywhere.[1] Most such patients were previously diagnosed with primary neoplasm. The literature states that in about 30% of cases of patients with gnathic bone metastases, the primary tumor is asymptomatic and not diagnosed.[2] The incidence of jaw bone metastasis is difficult to assess accurately since the usual method to determine the distribution of a metastatic tumour has been by a radiographic skeletal survey in which the jaws are rarely included. The most common primary tumors leading to mandibular metastasis were lung in men and breast in women.[3] These metastatic lesions (or tumors) usually are carcinomas rather than sarcomas.[4] Mandibular metastasis due to thyroid carcinoma is not very frequent and the cases described in the literature ABSTRACT