A case of chondrosarcoma of rib requiring differentiation from mediastinal tumor invasion of chest wall

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  • Izawa Naoko
    Department of General Thoracic Surgery, Tokyo Dental College Ichikawa General Hospital
  • Aibara Yuki
    Department of Orthopedics, Tokyo Dental College Ichikawa General Hospital
  • Anazawa Ukei
    Department of Orthopedics, Tokyo Dental College Ichikawa General Hospital
  • Sasaki Aya
    Department of Pathology and Laboratory Medicine, Tokyo Dental College Ichikawa General Hospital
  • Eguchi Keisuke
    Department of General Thoracic Surgery, Tokyo Dental College Ichikawa General Hospital

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  • 縦隔腫瘍と鑑別を要した肋骨軟骨肉腫の1例

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<p>A forty-nine-year-old female was referred to our hospital due to a left chest wall swelling mass that she had initially noted two years ago, along with pain in the lesion. Chest CT revealed an anterior mediastinal calcified mass measuring 13.5 cm in its longest axis. Which compressed the heart and partly extended into the subcutaneous tissue without invasion into neighboring organs. MRI showed a heterogeneous tumor with high signal on T2-weighted images. Ultrasound-guided needle biopsy confirmed a cartilage tumor. Subsequently, surgical resection was performed, involving removal of the tumor along with the fifth to seventh ribs, their cartilage, and surrounding soft tissue, followed by chest wall reconstruction. The pathological diagnosis confirmed chondrosarcoma. It is noteworthy that tumor formation within the anterior mediastinum and thoracic cavity was more prominent than its extension into subcutaneous areas, requiring differentiation from mediastinal tumor invasion into the chest wall.</p>

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