最下段の図７と図８で上行結腸（A）は拡張し，下行結腸（D）は虚脱しているので図６の１の上行結腸から肛門側へ追跡する．図５と図６の↑部位が閉塞病変で，単純CTだから造影効果は判断できないが，やや高濃度を呈する小さい病変で，悪性腫瘍の可能性が十分あると判断する．図５と図６のSBはKerckring襞を示し小腸である．T：横行結腸．2日後に右側横行結腸に人工肛門を造設し，2週間後に根治術を施行した（図A：▲が癌部）．

文献考察：（脾彎曲部より）右側結腸癌による閉塞例の予後は非閉塞例に比べ悪い．（表１，２，図）
Am J Surg. 2004 Apr;187(4):497-500.
Long-term prognosis of patients with obstructing carcinoma of the right colon.
Wang HS, Lin JK, Mou CY, Lin TC, Chen WS, Jiang JK, Yang SH.
BACKGROUND: The long-term prognosis of patients with colon cancer is dependent on many factors. The aim of this retrospective study was to assess the long-term prognosis of patients with obstructing carcinoma of the right colon. METHODS: From 1981 to 1988, 256 patients at the Veterans General Hospital-Taipei who were status postcurative resection of right colon adenocarcinoma were classified as obstruction group (n = 35) or nonobstruction group (n = 221) as appropriate. RESULTS: Analysis revealed no differences in age, sex, tumor location, or stage (P >0.05) between the two groups. However, the overall and distant recurrence rates were significant higher in obstructed patients than in nonobstructed patients. Further, long-term crude and cancer-specific survival rates were significantly lower in obstructed patients when examining either overall patient outcome or stage-matched outcomes. Multivariate analysis demonstrated that obstruction and tumor stage were both independent prognostic factors. CONCLUSIONS: Obstruction status was an independent prognostic factor for patients with right colon carcinoma. The long-term prognosis of patients with obstructing carcinoma of the right colon was poor.PMID: 15041498