Parosteal osteosarcoma of the ulna: a rare low-grade malignant neoplasm. Case report and review of the literature

摘要

Parosteal osteosarcoma is a rare low-grade malignant neoplasm. A case localized at the distal ulna is reported, and the tumour's radiological and histological features are described. Wide enbloc resection without postoperative adjuvant chemotherapy was the treatment. Good clinical function without signs of local recurrence was observed at the 3-year follow-up.