S状結腸癌術後骨髄癌症によるDICに対し, MTX-5FU交代療法が有効であった1例

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  • SUCCESSFUL MTX-5FU SEQUENTIAL THERAPY FOR DISSEMINATED INTRAVASCULAR COAGULATION DUE TO SYSTEMIC BONE MARROW METASTASIS AFTER OPERATION FOR CANCER OF THE SIGMOID COLON-A CASE REPORT-

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A 53-year-old man was admitted to the hospital because of anal bleeding and lumbago. Barium enema and colonoscopic examinations revealed sigmoid colon cancer, and computed tomography revealed metastasis to the caudate lobe of the liver. A low anterior resection and a resection of the caudate lobe of the liver were performed. Pathological diagnosis was poorly differentiated adenocarcinoma. (se, ly1, v2, ow(-), aw(-), ew(+)) After the operation that resulted in curability B, bleeding through the abdominal drains was observed, and severe thrombocytopenia and elevated fibrin/fibrinogen degradative products (FDP) were indicative of disseminated intravascular coagulation (DIC). Despite the treatment with gabexate mesilate, the bleeding tendency was not improved. Since a bone scintigraphy demonstrated diffuse abnormal uptake of isotope, a bone marrow biopsy was performed. As a results, DIC associated with systemic bone marrow metastasis was diagnosed. Sequential methotrexate and 5FU (MTX-5FU) therapy (MTX 30mg/m2, 5FU 600mg/m2) was introduced. After 7 courses of the chemotherapy, he recovered from DIC accompanied by an increase in platelet count and decreases in FDP and CEA (carcinoembryonic antigen) levels. It is suggested that the suquential MTX-5FU therapy was effective for DIC due to systemic bone marrow metastasis in the present case of sigmoid colon cancer.

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