A case of chondrosarcoma of the rib

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  • Ogoshi Yusuke
    Department of Thoracic Surgery, Kobe City Medical Center West Hospital
  • Sakata Ryuhei
    Department of Thoracic Surgery, Kobe City Medical Center West Hospital
  • Takeo Masahiko
    Department of Thoracic Surgery, Kobe City Medical Center West Hospital
  • Katsuyama Eiji
    Department of Pathology, Kobe City Medical Center West Hospital

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  • 肋骨原発軟骨肉腫の一切除例

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Abstract

<p>A 70-year-old woman was admitted to our hospital with progressive pain and swelling on the left costal arch. Computed tomography (CT) revealed a 12-cm osteolytic mass with calcification arising from the left 6th rib. In addition, computed tomography (CT) suggested that the mass had invaded the liver and stomach. Magnetic resonance imaging (MRI) showed a high-intensity mass in a T2-weighted image, and there was a space between the mass and stomach and liver, suggesting that the invasion of organs in the abdominal cavity was unlikely. Chondrosarcoma of the rib was suspected based on image studies and she underwent surgery. The tumor was resected along with partial resection of the 5th to 8th left ribs, sternum, and diaphragm to achieve a 3-cm margin. Intraoperative diagnosis of chondrosarcoma was made with frozen-sectioning, and cut-ends revealed no malignancy. Microscopic examination showed atypical tumor cells with a proliferating cartilage matrix, and the tumor was diagnosed as a chondrosarcoma of the ribs with surgical ends negative for malignancy. Since chondrosarcoma is less sensitive to chemotherapy and radiotherapy, wide surgical resection is the first-line treatment. We report a case of primary chondrosarcoma that originated in the rib and was treated successfully by surgery.</p>

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