Giant cell tumor of the bone, also known as osteoclastoma, accounts for 5–15% of bone tumors. The etiology may be related to localized trauma or inflammation.
Clinical Manifestations
Giant cell tumors of the temporal bone are asymptomatic in the early stages. As the tumor enlarges, symptoms such as peri-auricular pain and swelling develop. When the tumor invades the external ear, middle ear, or inner ear, associated symptoms may include tinnitus, hearing loss, and facial paralysis. Radiographic findings typically show a honeycomb or bubble appearance, or a homogeneous, lucent area on X-ray or CT imaging.
Treatment
The primary treatment approach is surgical excision, with efforts made to preserve facial nerve function and restore hearing to the extent possible.