Joseph A E
Dept. of Radiology, St. George's Hospital and Medical School, London, UK.
Scand J Gastroenterol Suppl. 1994;203:24-7. doi: 10.3109/00365529409091392.
Inflammatory or neoplastic bowel pathology is associated with thickening of the bowel wall. Ultrasound appearances reflect the pathological changes in the bowel. Crohn's disease is a transluminal disease leading to fibrosis. This fibrosis is responsible for the formation of an echo-poor halo surrounding a central echogenic zone. In the earlier stages with transmural oedema and inflammation, the halo assumes a ground glass appearance. Ulcerative colitis is a mucosal disease and hence the halo is a less prominent feature. Severe oedema in the bowel wall in fulminant ulcerative colitis can be recognized by the marked reduction of the haustral and central lumen of the colon.
炎症性或肿瘤性肠病病理与肠壁增厚有关。超声表现反映了肠道的病理变化。克罗恩病是一种导致纤维化的透壁性疾病。这种纤维化导致在中央回声区周围形成低回声晕。在透壁水肿和炎症的早期阶段，该晕呈现磨砂玻璃样外观。溃疡性结肠炎是一种黏膜疾病，因此晕不是一个突出特征。暴发性溃疡性结肠炎时肠壁的严重水肿可通过结肠袋和中央管腔的明显缩小来识别。
