[A Case of Carcinomatosis of the Bone Marrow Due to Rectal Cancer].

Le résumé fourni par la source

A 33-year-old man was admitted due to dyschezia and melena. Colonoscopy revealed a circulating type 4 rectal tumor. Further examination revealed intestinal obstruction due to rectal cancer, paraaortic lymph node metastasis, and multiple bone metastases, and an ileus tube was transanally inserted for decompression. Bone scintigraphy revealed multiple abnormal uptake regions in the entire skeleton. We planned to perform primary tumor resection and postoperative adjuvant chemotherapy and radiotherapy administration. Peritoneal signs in the lower abdomen appeared after 6 days of tube insertion. Abdominal computed tomography demonstrated intestinal perforation, and emergency surgery was performed. During the surgery, tube penetration in the anterior abdominal wall was observed in the sigmoid colon proximal to the tumor. Postoperatively, the patient developed disseminated intravascular coagulation(DIC). The patient had multiple bone metastases and juvenile cells in peripheral blood figure analysis; therefore, we concluded that DIC was caused by carcinomatosis of the bone marrow. After an informed consent was obtained, FOLFOX4 with simultaneous DIC treatment was initiated, and DIC remission was observed. The patient was transferred to a different hospital near his home, but died 35 days postoperatively.

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