Soft-tissue osteoma in the neck paravertebral space

Osteoma is a rare, slow-growing benign neoplasm located primarily in the skeleton. Soft-tissue osteoma is exceedingly rare. We report a case of soft-tissue osteoma occurring in the neck paravertebral space in a 25-year-old man. CT examination demonstrated a cancellous densely ossified mass in the right side of neck paravertebral space, with irregular lobulation and clear margin, but without relation to the adjacent vertebrae. The mass was resected, and the pathology confirmed soft-tissue osteoma.