Fiedler V, Köster R
Radiologe. 1984 Nov;24(11):527-31.
The main indication for colon barium enema examination is occult bleeding or bleeding noticed by the patient himself. The radiologist has to take into account all clinical details that could lead to bleeding and to document them. The most frequent causes of rectal bleeding are hemorrhoids and diverticulosis/itis which in marked cases may have a tumor-like appearance. A good double-contrast examination of the colon must not only exclude tumors, polyps or inflammatory diseases but also demonstrate other causes of bleeding. The presented paper describes typical roentgen signs and gives criteria to differentiate hemorrhoids from deeply situated cancer of the rectum or anus.
结肠钡灌肠检查的主要指征是隐匿性出血或患者自身发现的出血。放射科医生必须考虑所有可能导致出血的临床细节并记录下来。直肠出血最常见的原因是痔疮和憩室病/憩室炎，在严重的情况下可能呈现肿瘤样外观。一次良好的结肠双重对比检查不仅要排除肿瘤、息肉或炎症性疾病，还要找出其他出血原因。本文描述了典型的X线征象，并给出了区分痔疮与直肠或肛管深部癌症的标准。
