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患者,男性,68岁。于1991年5月因间歇性腹胀,便秘4年,行纤维结肠镜检查,发现升结肠,横结肠及乙状结肠粘膜有斑片状黑色沉着,升结肠、横结肠中段各见一0.3cm×0.2cm大的亚蒂样新生物,表面有片状腐烂。病理活检示:升结肠、横结肠、乙状结肠粘膜黑变病;升结肠、横结肠管状腺瘤Ⅰ～Ⅱ级.追问病史,患者无偏食及服用泻药史。 讨论 结肠黑变病临床较少见。据文献报道,该病的发生与长期高蛋白、高脂肪、低纤维素饮食引起的便秘以及结
Patient, male, 68 years old. In May 1991, due to intermittent bloating and constipation for 4 years, colonoscopy was performed. It was found that the ascending colon, transverse colon, and sigmoid mucosa had patchy black deposits. The ascending colon and transverse colon saw a 0.3 cm x 0.2 cm large Yadi-like new creatures, the surface of sheet decay. Pathological biopsy showed: ascending colon, transverse colon, sigmoid mucosa mucositis; ascending colon, transverse colon tubular adenoma I ~ II. Ask history, patients without partial eclipse and taking laxative history. Discussion Colon melanosis is less common clinically. According to reports in the literature, the occurrence of the disease and constipation and knots caused by long-term high-protein, high-fat, low-fiber diet