Ameloblastic carcinoma of the mandible: Report of a case and review.

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.

Dermoid cyst of the floor of the mouth with abundant hair: a case report.

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.