Recurrent Solitary Clavicular Parosteal Osteoma 25 Years after Surgical Resection

Osteoma is a slowly growing, asymptomatic, benign osteogenic tumor. An extremely rare case of clavicular parosteal osteoma (PO) reported. A 46-year-old female patient was treated with marginal resection after an open biopsy for large, firm symptomatic mass originating from the middle part left clavicle, which recurred 25 years surgery. In fifth year postoperatively, followed up full range motion shoulder without any problem in her daily life. this report, clinical course, imaging findings, diagnosis, and long-term results recurrence clavicle are described first time literature.