Ameloblastic carcinoma is an extremely rare malignant neoplasm which mostly occurs in the mandible and at a wide age group. It has no gender bias and has specific histopathologic features and its surgical treatment requires more aggression than ameloblastoma. . The number of reported cases of the disorder are rare, and it is very difficult to diagnose based on histopathologic findings because the diagnosis of this lesion requires differentiation from some other malignant neoplasms and ameloblastomas .The present report deals with a case of ameloblastic carcinoma in the mandible in which ameloblastoma should be taken into account , regarding clinical and microscopic features of the neoplasm.