Clinical Image: Ameloblastomas are benign, locally invasive odontogenic tumors of epithelial origin, which are derived from the toothforming apparatus [1]. They account for approximately 60% of odontogenic tumors of the mandible and10% of all jaw tumors [2]. Our case was 20 years old man with slow growing mass from three years ago. CT scan showed huge heterogeneous mass with right side mandibular destruction. After diagnosis, right side mandibular resection with reconstruction was performed.