A case of sclerosing odontogenic carcinoma

We encountered a case of sclerosing odontogenic carcinoma that was difficult to diagnose. The patient was a 57-year-old man who presented with paralysis of the mental region. At his first visit, he was found to have a swelling in the right alveolar part of the mandible, oppressive pain, and dysesthesia of the mental region and tongue. Panoramic radiography revealed a diffuse and poorly marginated radiolucency extending from the right lower canine to the right mandibular ramus. After preoperative chemotherapy, we performed right hemimandibulectomy, selective neck dissection with removal of level Ⅰ lymph nodes, and reconstruction with a fibular osteoseptocutaneous flap with the patient under general anesthesia. Histopathologic examination of the resected specimens led to the diagnosis of sclerosing odontogenic carcinoma. The patient had an uneventful course without any evidence of recurrence 38 months after surgery.