Benign lip lesions do not usually pose a problem for the clinician and their surgical management is straightforward. Accurate auditing and detailed statistical analysis aid in disease prevention and help avoid errors in diagnosis and management.

This study confirms that FNA cytology is a technique that offers high sensitivity, specificity and diagnostic accuracy in salivary gland tumour diagnosis.

The patient is still under periodical control, and 68 months postoperatively, there is no evidence of a recurrence.

Central mucoepidermoid carcinoma is an unusual tumor of the jaws, especially in the anterior region. It is only locally aggressive and has most frequently a good prognosis if treated with wide surgical excision.

Management in such cases should be in the context of the treatment of a metastatic disease that could prolong survival and improve quality of life, but is not curative. Tooth invasion has been described since 1910 for different primary malignancies with distant metastases to the oral cavity. This report seems to describe the second case in the literature of a metastatic breast carcinoma to the mandible with tooth invasion. Management in such cases should be in the context of the treatment of a metastatic disease that could prolong survival and improve quality of life, but is not curative.