结肠横纹肌样肿瘤(rhabdoid colon tumors,RCT)是一种较少见的肿瘤,此病变是一种具有独立临床病理学特征的疾病实体,还是某一种疾病的特殊亚型,仍然存在争议。截止目前,国外文献报道了7例RCT[1-7],这些病例多被诊断为肾外恶性横纹肌样瘤、伴有横纹肌样特征的腺癌或横纹肌样癌;至今国内文献尚未检索到该病,也许未被国内病理学界广泛认识。由于对其了解甚少,易误诊为其他肿 It is still controversial that rhabdoid colon tumors (RCTs) are a rare tumor that is a disease entity with independent clinicopathological features or a particular subtype of a disease. Up to now, 7 cases of RCT have been reported in foreign literature [1-7]. Most of these cases were diagnosed as extrarenal malignant rhabdomyosarcoma, adenocarcinoma with rhabdomyosarcoma or rhabdomyosarcoma. To date, no literature has been found in domestic literature , May not be widely recognized by the domestic pathology community. Because of its little understanding, easily misdiagnosed as other swollen