Abstract :

  Background and Aim: Adenoid Cystic Carcinoma (ACC) is a relatively rare epithelial tumor of the salivary glands in the maxillofacial region. We present a case of central ACC involving the anterior portion of mandible in a75-year-old woman.

  Materials and Methods : A Case of central adenoid cystic carcinoma is reported in a 75-year- old woman who presented with a soft tissue swelling in the anterior segment of her mandible with slow growing pattern from 9 years ago. Radiographic findings in her panoramic x-ray revealed a large radiolucent area, with irregular margins. The histopathological analysis, revealed the presence of tubular adenoid cystic carcinoma. The patient was surgically treated by with partial mandibulectomy and her CT scan revealed no evidence of lung metastases. The patient passed away in two-year follow up due to distant metastasis.

  Conclusion : It is mandatory to include malignant salivary gland tumors in differential diagnosis of pathologic lesions of the anterior segment of mandible with bone destruction.