RESUMO
Ameloblastic carcinoma is a rare malignant odontogenic neoplasm that can arise either as a de novo lesion or from pre-existing ameloblastoma. Histopathologically, the tumor retains an ameloblastomatous differentiation pattern but shows cytological features of malignancy. Owing to variable biologic behavior and paucity of long-term follow-up cases, there has been no clear consensus on treatment protocol. The present case of ameloblastic carcinoma arose in the mandible of a 24-year-old male. Surgical treatment involved resection of the mandible along with regional lymph nodes. The patient has been on follow up for the past one year without any recurrence or metastases. An update on ameloblastic carcinoma encompassing the histogenesis, immunohistochemical features and treatment aspects are included.
RESUMO
Dermoid cysts are developmental cysts and considered to develop from enslavement of epithelial debris in the midline during closure of the mandibular and hyoid brachial arches. These cysts are painless, slow growing and most commonly occur in young adults with no gender predilection. They are uncommon in the head and neck region. Oral dermoid cysts are found usually in the submental or sublingual triangle in variable relation to mylohyoid, geniohyoid, and genioglossus muscle. The cyst is lined by epidermis like epithelium and contains dermal adnexal structures in the cyst wall. We report a case of dermoid cyst arising in the sublingual region of a young adult male with abundance of hair which is rare finding.
