Commonest site of Ivory osteoma is: (A) Frontal-Ethmodial region, (B) Mandible, (C) Maxilla, (D) Spheroid
Answer is A. Osteoma: They are most commonly seen in the frontal sinus followed in turn by those of ethmoid and maxillary. They may remain asymptomatic, being discovered incidentally on X-rays. Ref: Textbook of ENT, Dhingra; 6th edition; Pg no: 205 ref img