Osteoid osteoma is a small, benign, and painful tumor most commonly affecting the extra-articular portions of the long bones, especially the femur or tibia. Osteoid osteoma of the coracoid process ...

The clinical and radiographic impression was a lesion consistent with osteoid osteoma. The patient subsequently had surgical excision of the nidus. By an anterior approach, the base of the ...

Histopathological examination revealed a benign ossifying tumor (sinonasal osteoma). Osteomas of the frontal sinus usually remain asymptomatic as long as they do not block the outflow passages.