[Submandibular dermoid cyst extended to the cervical region]. / Kyste dermoïde de la région submandibulaire étendu à la région cervicale.

INTRODUCTION: Dermoid cysts of the submandibular region are rare. We report an exceptional case with extension to the neck. OBSERVATION: The patient presented with a voluminous left submandibular cystic tumor with extension to the neck and to floor of the mouth. Ultrasonography and CT scan contributed to the diagnosis and to chose the best surgical approach in case of large cyst. In our case, the tumor was removed using a double cervical and intraoral approach. Histopathological examination confirmed a dermoid cyst. DISCUSSION: We report an exceptional case of dermoid cyst originating from submandibular region. A double surgical approach was necessary for tumor resection. Tumor removal must be complete; the submandibular gland may be removed if necessary.