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目的 通过超声检查进一步提高对胆管癌的诊断正确率,同时要加强对胆管癌与其它疾病相鉴别。方法 晨起空腹,对大便干燥、腹胀者应在检查前一天服缓泻剂。检查前饮水500～800ml,以排除腹腔内气体的干扰。结果 胆管癌声像图有以下几种表现,(1)管壁增厚型表现为胆管有局限或弥漫增厚,管腔狭窄或闭塞。(2)乳头状型肿瘤组织沿管壁向腔内突起。(3)扩张胆管型表现为胆管明显扩张,肿瘤组织显示在末端或不清。(4)肝门胆管肿块型左右肝管扩张,肝左右叶之间有不规则的结节状块。另外还有一种表现为胰头区肿块型,胰头区有不规则的低回声团块或不均质肿块,胰头区有不规则的低回声团块或不均质肿块。结论 要掌握好胆管癌的声像图特征,做好与其它疾病的鉴别诊断,对病人的治疗及愈后具有重要价值。
Objective To further improve the diagnostic accuracy of cholangiocarcinoma by ultrasound, and to strengthen the identification of cholangiocarcinoma and other diseases. Method fasting morning, dry stool, abdominal distension should be taken the day before the inspection laxatives. Check before drinking 500 ~ 800ml, to exclude intra-abdominal gas interference. Results cholangiocarcinoma sonography has the following manifestations, (1) thickening of the wall showed limited or diffuse bile duct thickening, stenosis or occlusion. (2) papillary tumor tissue protruding along the wall to the cavity. (3) dilated bile duct type showed a clear dilatation of the bile duct, tumor tissue showed at the end or unclear. (4) hilar bile duct type of left and right hepatic duct dilatation, there are irregular nodules between the left and right lobes. There is also a manifestation of pancreatic head mass type, pancreatic head area has irregular hypoechoic mass or heterogeneous mass, pancreatic head area has irregular hypoechoic mass or heterogeneous mass. Conclusion To master the features of cholangiocarcinoma and to make the differential diagnosis with other diseases, it is of great value to patients’ treatment and prognosis.