Abstract
IntroductionMasses which develop on the surface of the rib bones are rare. The differential diagnosis includes benign and malignant lesions.Case presentationA 23-year-old European woman presented at an out-patient clinic with a 9-month history of a painless swelling on the right posterolateral side of her chest wall. The case reported here is of a very rarely seen parosteal osteosarcoma of the rib that was treated with wide resection and chest wall reconstruction. There was no evidence of local recurrence or distal metastasis after a 1-year follow-up.ConclusionParosteal osteosarcoma is a locally aggressive malignant tumor, and resection with a wide margin is the most appropriate treatment. Correct diagnosis of parosteal osteosarcoma is challenging for an orthopedic surgeon. Although rare, in the differential diagnosis of lesions located on the ribs, parosteal osteosarcoma should be considered and a systematic diagnostic approach should be taken.
Highlights
ConclusionParosteal osteosarcoma is a locally aggressive malignant tumor, and resection with a wide margin is the most appropriate treatment
Masses which develop on the surface of the rib bones are rare
Osteosarcomas (OSs) are the most frequent primary malignant bone tumor in which neoplastic cells produce osteoids and they usually develop in an intramedullary location [1]
Summary
A rare case of parosteal OS located on a rib is presented here. rare, for the differential diagnosis of lesions located on the ribs, parosteal OS should be considered and a systematic diagnostic approach should be taken.
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