Ameloblastic carcinoma is a rare malignant lesion with characteristic behaviour that dictates

a more aggressive surgical approach than that of a simple ameloblastoma. However, due to less

number of cases reported till now in the literature and scarcity of documentations, reliable

evidence of its biologic activity is currently unavailable. Because the lesion is usually found

unexpectedly after an incisional biopsy of diagnosed case of Ameloblastoma or after the removal

of a cyst, a guide to differential diagnosis is not usually useful. Most ameloblastic carcinomas are

presumed to have arisen de novo with a few cases of malignant transformation of ameloblastomas. Although rare, these lesions have been known to metastasize, mostly to the regional lymph nodes or lungs. Here we reported a case of 62year old male and his clinical, radiographical and histological features has been discussed with an insight on the classification systems of odontogenic malignancies.