Although chondrosarcoma is a common malignant bone tumor, cases arising in the rib are relatively rare. We experienced a case of chondrosarcoma arising in the right 10th rib during follow-up after lung cancer surgery. Although the finding of an osteolytic mass suggested a metastatic bone tumor, 18F-fluorodeoxyglucose positron-emission tomography demonstrated low fluorodeoxyglucose uptake, and a primary bone tumor was suspected. The bone tumor was resected and diagnosed as chondrosarcoma. Four years after resection, there has been no recurrence or metastasis. Positron-emission tomography was useful for differential diagnosis between a chondrosarcoma and a metastatic bone tumor.
FongYPairoleroPCSimFHChaSSBlanchardCLScullySP. Chondrosarcoma of the chest wall. Clin Orthop Relat Res2004; 427: 184–189.
2.
RascoePAReznikSISmytheWR. Chondrosarcoma of the thorax. Sarcoma2011; 2011: 342879, doi: 10.1155/2011/342879.
3.
MarulliGDurantiLCardilloG. Primary chest wall chondrosarcomas: results of surgical resection and analysis of prognosis factors. Eur J Cardiothorac Surg2014; 45: e194–e201.
4.
ShimoyamaTSuzukiRYoshiyaKYamatoYKoikeT. Chondrosarcoma of the rib [review]. Jpn J Thorac Cardiovasc Surg2003; 51: 167–171.
5.
Jesus-GarciaROsawaAFilippiRZ. PET-CT an accurate methods for the differential diagnosis between chondroma and chondrosarcoma?Springplus2016; 5: 236–245.
BrennerWConradEUEaryJF. FDG-PET imaging for grading and prediction of outcome in chondrosarcoma patients. Eur J Nucl Med Mol Imaging2004; 31: 189–195.
8.
LeeFYYuJChangSSFawwazRParisienMV. Diagnostic value and limitations of fluorine-18 fluorodeoxyglucose positron emission tomography for cartilaginous tumors of bone. J Bone Joint Surg Am2004; 86-A: 2677–2685.
