Osteoma and exostoses

Features

Benign lesion of bone.
Two types: compact (ivory) and cancellous (spongy).
Most common sites: mandible (condyle, angle, ramus,molar region) and frontal sinus.
Usually painless, incidental finding.

Differential diagnosis

Cases

Case 1

Two osteomas, one peripheral on the lingual foramen and the other on the body of the mandible.

Case 2

A case of osteoma.

Case 3

Case of buccal exostoses in the upper and lower jaw. They are benign, broad-based surface masses. Generally buccal exostoses require no treatment.