Huge ascending colon carcinoma, treated successfully with S-1 plus CPT-11, followed by significant tumor reduction and curative resection--a case report
Abstract
A 78-year-old woman was admitted to our hospital complaining of persistent abdominal pain and diarrhea. Computed tomography (CT) and colonoscopy (CF)revealed a huge ascending colon tumor, invading the descending part of the duodenum. The patient was treated preoperatively with a combination of S-1 plus CPT-11 (S-1 80 mg/body day 1-29, CPT- 11 100 mg/body day 1, 8, 15 and 22). No serious side effect was observed except low-grade fever and grade 2 appetite loss and diarrhea. Tumor reduction was significant on the preoperative CT and CF, with the invasion to the duodenum obscured. Right hemicolectomy with wedge resection of the duodenum was performed. Resected specimen revealed residual tumor in a small area of the submucosal to proper muscular layer of the contracted ascending colon, without pathological invasion to the duodenum. No nodal metastasis was observed. The patient was administered UFT (300 mg daily)postoperatively for two years and is still alive and free of disease after three years and ten months since the operation.
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