門脈腫瘍栓を伴ったS状結腸間膜原発脱分化型巨大脂肪肉腫の1例

  • 石田 隆志
    埼玉医科大学総合医療センター肝胆膵外科・小児外科
  • 赤松 延久
    埼玉医科大学総合医療センター肝胆膵外科・小児外科
  • 小澤 文明
    埼玉医科大学総合医療センター肝胆膵外科・小児外科
  • 駒込 昌彦
    埼玉医科大学総合医療センター肝胆膵外科・小児外科
  • 小高 明雄
    埼玉医科大学総合医療センター肝胆膵外科・小児外科
  • 東 守洋
    埼玉医科大学総合医療センター病理部

書誌事項

タイトル別名
  • A Case of Dedifferentiated Liposarcoma Arising from the Mesentery of Sigmoid Colon with Portal Vein Tumor Thrombus

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抄録

A 61 year old female case of huge liposarcoma, occupying whole abdomen, originated from the sigmoid colon mesenterium with liver metastasis is reported. On computed tomography (CT), 35cm sized tumor in diameter showed enhanced irregular density with a smooth surface. Radical surgical resection of the main liposarcoma with surrounding organs included sigmoidectomy, right hemihepatectomy with thrombectomy in portal vein, left and right salpingectomy and Left oophorectomy. The resected tumor was 5,760g in weight and 32×24×15cm in dimension. The pathological examination of the resected specimens yielded a rare case of dedifferenciated liposarcoma. After 13 months, the recurrence of tumor emboli in portal vein and lung metastasis were found and the thrombectomy was performed again. Dedifferentiated liposarcoma has a poor prognosis compared to those other histologic types. The surgery is the first choice for the disease. No effective adjuvant therapies including chemotherapy and radiotherapy have been established as yet. The patient was lost 2 years and 3 months since the first radical resection.

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