胃良、恶性病变的煌蓝色素内镜鉴别诊断

Role of Chromoendoscopy in the Differential Diagnosis between Benign and Malignant Gastric Lesion

本文报告了用煌蓝对胃粘膜染色的结果。用煌蓝染色后,可以非常清楚地观察到正常粘膜的胃小区结构,小区沟线呈淡蓝色,胃小区呈规则的网状结构。肠上皮化生灶表现了明显的蓝色,胃粘膜的良性隆起型病变,如息肉表现了淡蓝色,良性溃疡的底部显示蓝色,溃疡边缘显示了正常的小区结构。而粘膜恶性病变表现了界限清楚的鲜红色或粉红色。因此,早期胃癌非常容易被查出,特别是普通胃镜检查时遗漏的Ⅱb型癌。由于良、恶性病变显示了明显不同的色彩,证明这种方法在胃癌和胃良性病变的鉴别诊断中非常有用。

Gastric mucosa when stained with Brilliant Blue(B. B.),the ditches of the normal gastric areola gave light blue in color and appeared as fine network. And area with intestinal metaplasia stained distinctly blue in colour, whereas benign protrusive lesions, such as the polyp, coloured light blue. In benign ulcer, the staining is blue at the base and light blue at the periphery. For those cancerous lesion, contrary to the benign one, a well-circumscribed bright red or Pink area were readily discernible, especially for those of Ⅱb type. Because of different colour yielded by benign and ma- lignant lesions, it is evident that this method is useful in differential diagnosis.